# 10,000,000,000

10,000,000,000 (ten billion) is the natural number following 9,999,999,999 and preceding 10,000,000,001.
In scientific notation, it is written as 10$^{10}$.
10,000,000,000 is also the fifth power of 100 and also the square of 100,000.

## Selected 11-digit numbers (10,000,000,001–99,999,999,999)
### 10,000,000,001 to 19,999,999,999

* 10,000,000,019 = smallest 11-digit prime number.
* 10,000,020,331 = smallest triangular number with 11 digits and the 141,421st triangular number
* 10,123,457,689 = smallest pandigital prime in base 10.
* 10,294,287,500 = 2$^2$×5$^5$×7$^7$
* 10,460,353,203 = 2187$^3$ = 27$^7$ = 3$^{21}$
* 10,460,362,464 = Leyland number using 3 & 21 (3$^{21}$ + 21$^3$)
* 10,480,142,147 = 16th Bell number.
* 10,604,499,373 = 2197$^3$ = 13$^9$
* 10,779,215,329 = 103823$^2$ = 2209$^3$ = 47$^6$
* 11,019,960,576 = 104976$^2$ = 324$^4$ = 18$^8$
* 11,111,111,111 = repunit
* 11,123,060,678 = number of free 21-ominoes
* 11,874,568,703 = number of partitions of 378 into divisors of 378
* 12,230,590,464 = 110592$^2$ = 2304$^3$ = 48$^6$
* 12,345,654,321 = 111111$^2$, palindromic square
* 12,586,269,025 = 50th Fibonacci number.
* 13,060,694,016 = 6$^{13}$
* 13,409,202,676 = number of 41-bead necklaces (turning over is allowed) where complements are equivalent
* 13,492,928,512 = 28$^7$
* 13,743,921,632 = number of 40-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
* 13,749,310,575 = double factorial of 21
* 13,800,000,000 = approximate age of the universe in years
* 13,841,287,201 = 117649$^2$ = 2401$^3$ = 343$^4$ = 49$^6$ = 7$^{12}$
* 13,893,615,154 = number of centered hydrocarbons with 32 carbon atoms
* 13,967,553,600 = superior highly composite number, superabundant number
* 14,182,439,040 = smallest 5-perfect number
* 14,830,871,802 = number of trees with 30 unlabeled nodes
* 15,552,771,085 = number of series-reduced planted trees with 39 nodes
* 15,625,000,000 = 125000$^2$ = 2500$^3$ = 50$^6$
* 16,983,563,041 = 130321$^2$ = 361$^4$ = 19$^8$
* 17,171,999,198 = number of partitions of 390 into divisors of 390
* 17,179,869,184 = 131072$^2$ = 4$^{17}$ = 2$^{34}$
* 17,179,870,340 = Leyland number using 2 & 34 (2$^{34}$ + 34$^2$)
* 17,179,952,705 = Leyland number using 4 & 17 (4$^{17}$ + 17$^4$)
* 17,249,876,309 = 29$^7$
* 17,589,157,530 = number of partitions of 288 into divisors of 288
* 18,212,890,625 = 1-automorphic number
* 18,348,340,127 = logarithmic number.
* 18,457,556,052 = 28th Pell number.
* 19,577,194,573 = Markov prime
* 19,606,122,418 = number of partitions of 384 into divisors of 384

### 20,000,000,000 to 29,999,999,999

* 20,365,011,074 = 51st Fibonacci number.
* 20,661,046,784 = 2744$^3$ = 14$^9$
* 21,511,212,261 = number of secondary structures of RNA molecules with 30 nucleotides
* 21,870,000,000 = 30$^7$
* 22,222,222,222 = repdigit
* 22,801,763,489 = 1,000,000,000th prime number
* 24,466,267,020 = Catalan number
* 25,209,506,681 = Markov prime
* 25,600,000,000 = 160000$^2$ = 400$^4$ = 20$^8$
* 25,669,818,476 = 26th Motzkin number.
* 25,937,424,601 = 161051$^2$ = 121$^5$ = 11$^{10}$
* 26,179,922,024 = number of 42-bead necklaces (turning over is allowed) where complements are equivalent
* 26,771,144,400 = smallest number divisible by the numbers from 1 to 26 (there is no smaller number divisible by the numbers from 1 to 25 since any number divisible by 2 and 13 must be divisible by 26)
* 26,817,356,776 = number of 41-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
* 26,990,077,184 = number of partitions of 240 into divisors of 240
* 27,512,614,111 = 31$^7$
* 28,088,787,314 = number of signed trees with 19 nodes
* 28,843,094,837 = number of partitions of 300 into divisors of 300

### 30,000,000,000 to 39,999,999,999

* 30,517,578,125 = 3125$^3$ = 125$^5$ = 5$^{15}$
* 31,381,059,609 = 177147$^2$ = 9$^{11}$ = 3$^{22}$
* 31,381,070,257 = Leyland number using 3 & 22 (3$^{22}$ + 22$^3$)
* 32,742,002,341 = number of series-reduced planted trees with 40 nodes
* 32,951,280,099 = 52nd Fibonacci number.
* 33,333,333,333 = repdigit
* 33,489,857,205 = number of prime numbers having twelve digits
* 33,823,827,452 = number of partially ordered set with 13 unlabeled elements
* 34,359,738,368 = 128$^5$ = 32$^7$ = 2$^{35}$
* 34,359,739,593 = Leyland number using 2 & 35 (2$^{35}$ + 35$^2$)
* 36,201,693,122 = number of centered hydrocarbons with 33 carbon atoms
* 37,607,912,018 = number of primes under 10$^{12}$
* 37,822,859,361 = 194481$^2$ = 441$^4$ = 21$^8$
* 38,443,359,375 = 3375$^3$ = 15$^9$

### 40,000,000,000 to 49,999,999,999

* 40,330,829,030 = number of trees with 31 unlabeled nodes
* 42,618,442,977 = 33$^7$
* 43,191,857,688 = number of free 22-ominoes
* 44,208,781,349 = Markov prime
* 44,444,444,444 = repdigit
* 44,560,482,149 = Markov prime, 29th Pell number

### 50,000,000,000 to 59,999,999,999

* 51,141,124,287 = number of 43-bead necklaces (turning over is allowed) where complements are equivalent
* 52,357,746,896 = number of 42-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
* 52,495,396,602 = 7th primary pseudoperfect number.
* 52,523,350,144 = 34$^7$
* 53,316,291,173 = 53rd Fibonacci number.
* 53,745,962,199 = number of secondary structures of RNA molecules with 31 nucleotides
* 54,875,873,536 = 234256$^2$ = 484$^4$ = 22$^8$
* 55,420,693,056 = 8th square triangular number.
* 55,555,555,555 = repdigit

### 60,000,000,000 to 69,999,999,999

* 61,917,364,224 = 248832$^2$ = 144$^5$ = 12$^{10}$
* 64,339,296,875 = 35$^7$
* 66,666,666,666 = repdigit
* 68,719,476,736 = 262144$^2$ = 4096$^3$ = 512$^4$ = 64$^6$ = 16$^9$ = 8$^{12}$ = 4$^{18}$ = 2$^{36}$
* 68,719,478,032 = Leyland number using 2 & 36 (2$^{36}$ + 36$^2$)
* 68,719,581,712 = Leyland number using 4 & 18 (4$^{18}$ + 18$^4$)
* 68,998,193,212 = number of series-reduced planted trees with 41 nodes
* 69,486,440,625 = 3$^3$×5$^5$×7$^7$

### 70,000,000,000 to 79,999,999,999

* 73,007,772,802 = 27th Motzkin number.
* 77,777,777,777 = repdigit
* 78,310,985,281 = 279841$^2$ = 529$^4$ = 23$^8$
* 78,364,164,096 = 279936$^2$ = 36$^7$ = 6$^{14}$

### 80,000,000,000 to 89,999,999,999

* 80,313,433,200 = smallest number divisible by the numbers from 1 to 28
* 81,393,657,019 = 14th alternating factorial.
* 81,749,606,400 = double factorial of 22
* 81,787,109,376 = 1-automorphic number
* 82,864,869,804 = 17th Bell number.
* 86,267,571,272 = 54th Fibonacci number.
* 87,178,291,200 = 14!
* 88,888,888,888 = repdigit

### 90,000,000,000 to 99,999,999,999

* 91,482,563,640 = Catalan number
* 94,143,178,827 = 3$^{23}$
* 94,143,190,994 = Leyland number using 3 & 23 (3$^{23}$ + 23$^3$)
* 94,550,040,702 = number of centered hydrocarbons with 34 carbon atoms
* 94,931,877,133 = 37$^7$
* 96,889,010,407 = 7$^{13}$
* 99,957,747,388 = number of 44-bead necklaces (turning over is allowed) where complements are equivalent
* 99,999,999,977 = largest 11-digit prime number
* 99,999,999,999 = repdigit