4000 (عدد)

**4000 (عدد)** یعنی 4,000 ایک عدد اور ایک علامت ہے۔ کچھ عددی نظاموں میں 3,999 سے بڑا یا زیادہ اور 4,001 سے چھوٹا یا کم ہوتا ہے۔ گنتی میں اسے چار ہزار بولا جاتا ہے۔ اور اس سے پہلے تین ہزار نو سو نینانوے اور اس کے بعد چار ہزار ایک بولا جاتا ہے۔ 

## انفرادی خصوصیات

## عمومی خصوصیات
## 4001 تا 4999 کے خاص اعداد
* **4005** – triangular number
* **4007** – safe prime
* **4010** – magic constant of *n*&times;*n* normal جادوئی خانے and ''n''-queens problem for *n* = 20.
* **4013** – balanced prime
* **4019** – Sophie Germain prime
* **4028** – sum of the first 45 primes
* **4030** – third weird number
* **4031** – sum of the cubes of the first six primes
* **4032** – pronic number
* **4033** – sixth super-Poulet number; strong pseudoprime in base 2
* **4060** – tetrahedral number
* **4073** – Sophie Germain prime
* **4079** – safe prime
* **4092** - an occasional glitch in the game The Legend of Zelda: Ocarina of Time causes the Gossip Stones to say this number
* **4095** – triangular number, odd زائد عدد, مرسن مفرد عدد
* **4096** – power of two 2^{12}; 64^2; 16th cube; smallest number with exactly 13 divisors; a superperfect number
* **[[4104 (عدد)|4104]]** – 2^3 + 16^3 = 9^3 + 15^3 (taxicab number)
* **4127** – safe prime
* **4139** – safe prime
* **4140** – Bell number
* **4141** – centered square number
* **4147** – smallest گول عدد in duodecimal
* **4160** – pronic number
* **4166** – centered heptagonal number, 7! &minus; 6! &minus; 5! &minus; 4! &minus; 3! &minus; 2! &minus; 1! &minus; 0!
* **4167** – 7! &minus; 6! &minus; 5! &minus; 4! &minus; 3! &minus; 2! &minus; 1!
* **4168** – 7! &minus; 6! &minus; 5! &minus; 4! &minus; 3! &minus; 2!
* **4170** – 7! &minus; 6! &minus; 5! &minus; 4! &minus; 3!
* **4176** – 7! &minus; 6! &minus; 5! &minus; 4!
* **4181** – Fibonacci number, Markov number
* **4186** – triangular number
* **4187** – factor of R13. Also record number of wickets taken in فرسٹ کلاس کرکٹ by Wilfred Rhodes.
* **4199** – highly cototient number, product of three consecutive primes
* **4200** – nonagonal number, pentagonal pyramidal number, 7! &minus; 6! &minus; 5!
* **4210** – 11th semi-meandric number
* **4211** – Sophie Germain prime
* **4219** – cuban prime of the form x = y + 1
* **4223** – Kynea number
* **4225** – 65^2، centered octagonal number
* **4227** – sum of the first 46 primes
* **4240** – Leyland number
* **4257** – decagonal number
* **4259** – safe prime
* **4271** – Sophie Germain prime
* **4278** – triangular number
* **4283** – safe prime
* **4289** – highly cototient number
* **4290** – pronic number
* **4320** – 7! &minus; 6!
* **4324** – 23rd square pyramidal number
* **4325** – centered square number
* **4349** – Sophie Germain prime
* **4356** – 66^2، sum of the cubes of the first eleven integers
* **4359** – perfect totient number
* **4369** – seventh super-Poulet number
* **4371** – triangular number
* **4373** – Sophie Germain prime
* **4375** – perfect totient number (the smallest not divisible by 3)
* **4391** – Sophie Germain prime
* **4397** – Year of دمدار سیارہ ہیلے- بوپ's return, a prime number
* **4400** – the number of missing persons in the sci-fi show *[[The 4400]]*
* **4409** – Sophie Germain prime, highly cototient number, balanced prime
* **4411** – centered heptagonal number
* **4421** – alternating factorial
* **4422** – pronic number
* **4438** – sum of the first 47 primes
* **4446** – nonagonal number
* **4447** – cuban prime of the form *x* = *y* + 1
* **4457** – balanced prime
* **4465** – triangular number
* **4481** – Sophie Germain prime
* **4489** – 67^2، centered octagonal number
* **4495** – tetrahedral number
* **4503** – largest number not the sum of four or fewer squares of composites
* **4505** – fifth Zeisel number
* **4513** – centered square number
* **4522** – decagonal number
* **4547** – safe prime
* **4556** – pronic number
* **4560** – triangular number
* **4579** – octahedral number
* **4597** – balanced prime
* **4607** – Woodall number
* **4619** – highly cototient number
* **4624** – 68^2
* **4641** – magic constant of *n*&times;*n* normal جادوئی خانے and ''n''-queens problem for *n* = 21.
* **4656** – triangular number
* **4657** – balanced prime
* **4661** – sum of the first 48 primes
* **4663** – centered heptagonal number
* **4679** – safe prime
* **4681** – eighth super-Poulet number
* **4691** – balanced prime
* **4692** – pronic number
* **4699** – nonagonal number
* **4703** – safe prime
* **4705** – 48^2 + 49^2 = 17^2 + 18^2 + \cdots + 26^2، centered square number
* **4727** – sum of the squares of the first twelve primes
* **4733** – Sophie Germain prime
* **4753** – triangular number
* **4761** – 69^2، centered octagonal number
* **4787** – safe prime
* **4788** – 14th Keith number
* **4793** – Sophie Germain prime
* **4795** – decagonal number
* **4799** – safe prime
* **4801** – cuban prime of the form x = y + 2, smallest prime with a composite sum of digits in base 7
* **4830** – pronic number
* **4851** – triangular number, pentagonal pyramidal number
* **4862** – کیٹیلان عدد
* **4871** – Sophie Germain prime
* **4879** – 11th Kaprekar number
* **4888** – sum of the first 49 primes
* **4900** – 70^2، the only square-pyramidal square other than 1http://mathworld.wolfram.com/CannonballProblem.html
* **4901** – centered square number
* **4913** – 17th cube
* **4919** – Sophie Germain prime, safe prime
* **4922** – centered heptagonal number
* **4941** – centered cube number
* **4943** – Sophie Germain prime
* **4950** – triangular number, 12th Kaprekar number
* **4959** – nonagonal number
* **4960** – tetrahedral number; greater of fourth pair of Smith brothers
* **4970** – pronic number
* **4991** – Lucas–Carmichael number
* **4993** – balanced prime

## حوالہ جات

زمرہ:ابتدائی حساب
زمرہ:اعداد
زمرہ:صحیح اعداد