1162
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 2016
- Proper Divisor Sum (Aliquot Sum)
- 854
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 492
- Möbius Function
- -1
- Radical
- 1162
- 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
- yes
- 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
- 119
- Smith Number
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Number of n-bead necklaces (turning over is allowed) where complements are equivalent.at n=16A000011
- Number of even sequences with period 2n (bisection of A000011).at n=8A000117
- Pentagonal numbers: a(n) = n*(3*n-1)/2.at n=28A000326
- Generalized pentagonal numbers: m*(3*m - 1)/2, m = 0, +-1, +-2, +-3, ....at n=55A001318
- Numbers k such that 45*2^k - 1 is prime.at n=36A002242
- a(n) = ceiling(n*phi^7), where phi is the golden ratio, A001622.at n=40A004962
- Number of connected graphs on n labeled nodes on a circle with straight-line edges that don't cross.at n=5A007297
- Number of nonsplit type 2 metacyclic 2-groups of order 2^n.at n=45A007981
- Coordination sequence T3 for Zeolite Code MOR.at n=22A008184
- Coordination sequence T1 for Milarite.at n=21A008256
- Expansion of (1 + 2*x^2 + x^3)/((1 - x)^2*(1 - x^3)).at n=41A008822
- Coordination sequence T2 for Zeolite Code CON.at n=24A009869
- a(n) = a(n-1) + a(n-3), with a(0) = a(1) = 1, a(2) = 5.at n=17A011761
- Expansion of 1/((1-x)^3*(1-x^3)^2).at n=18A011779
- a(n) = floor( n*(n-1)*(n-2)/5 ).at n=19A011887
- cos(exp(x)-cos(x))=1-1/2!*x^2-6/3!*x^3-15/4!*x^4+183/6!*x^6...at n=7A013314
- Partial sums of primes, if 1 is regarded as a prime (as it was until quite recently, see A008578).at n=26A014284
- Even pentagonal numbers.at n=14A014633
- a(n) = Sum_{k=0..n} ceiling(k^3/n).at n=15A014813
- Numbers k such that phi(k) + 12 | sigma(k).at n=35A015805