1088
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 14
- Divisor Sum
- 2286
- Proper Divisor Sum (Aliquot Sum)
- 1198
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 512
- Möbius Function
- 0
- Radical
- 34
- Omega Function (Ω)
- 7
- Little Omega Function (ω)
- 2
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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 18
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Moser-de Bruijn sequence: sums of distinct powers of 4.at n=40A000695
- Numbers k such that k / (sum of digits of k) is a square.at n=41A001102
- a(n) = least value of m for which Liouville's function A002819(m) = -n.at n=32A002053
- Number of bicoverings of an n-set.at n=5A002718
- Smallest number such that n-th iterate of Chowla function is 0.at n=14A002954
- Numbers that are the sum of 3 positive 5th powers.at n=12A003348
- Numbers of edges of regular polygons constructible with ruler (or, more precisely, an unmarked straightedge) and compass.at n=57A003401
- a(n) = n^2 + prime(n).at n=30A004232
- Convolution of A002024 with itself.at n=36A004797
- Numbers that are the sum of at most 3 positive 5th powers.at n=25A004843
- Numbers that are the sum of at most 4 positive 5th powers.at n=42A004844
- a(n) = n*(n+2) = (n+1)^2 - 1.at n=32A005563
- Number of paraffins.at n=15A005997
- Numbers not of form p + 2^x + 2^y.at n=21A006286
- a(n) = n*(n+1)*(n+8)/6.at n=16A006503
- Number of self-dual 2-colored necklaces with 2n beads.at n=15A007147
- Coordination sequence T2 for Zeolite Code AFR.at n=25A008020
- Coordination sequence T1 for Zeolite Code MEL.at n=21A008150
- Coordination sequence T4 for Zeolite Code MTT.at n=20A008192
- Number of Barlow packings with group P3m1 that repeat after n layers.at n=9A011953