10887
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 15360
- Proper Divisor Sum (Aliquot Sum)
- 4473
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6840
- Möbius Function
- -1
- Radical
- 10887
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 117
- Smith Number
- yes
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers having four 2's in base 6.at n=35A043380
- Arrange n^2 octagons that each have area 7 so that they leave (n-1)^2 square gaps each with area 2; a(n) is the total area of these polygons.at n=34A086640
- Sum of first 2n primes.at n=35A109722
- A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes.at n=17A140763
- Numbers k such that k^3 divides 14^(k^2) + 1.at n=16A177814
- Number of 3 X n 0..1 arrays with antidiagonals unimodal and rows and diagonals nondecreasing.at n=37A224039
- Terms of A007504 divisible by 3.at n=20A249679
- Numbers in A007504 such that omega(a(n)) = Omega(a(n)) = 3.at n=13A264885
- Number of integer-sided pentagons having perimeter n, modulo rotations but not reflections.at n=34A293822
- Numbers k such that k, k + 1 and k + 2 are all norm-deficient in Gaussian integers (A332572).at n=36A332574
- a(n) = Sum_{i=1..n} (prime(i+1)-prime(i))*prime(n+1-i).at n=38A343531
- Polygonal numbers of order greater than 2 (A090466) which are the sum of the first k primes, for some k > 0.at n=42A364694
- Expansion of Product_{i>=1, j>=0} (1 + x^(i * 7^j)).at n=54A373221
- Consecutive states of the linear congruential pseudo-random number generator (430*s + 2531) mod 11979 when started at s=1.at n=40A384431