1136
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 10
- Divisor Sum
- 2232
- Proper Divisor Sum (Aliquot Sum)
- 1096
- 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
- 560
- Möbius Function
- 0
- Radical
- 142
- Omega Function (Ω)
- 5
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 106
- 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
- Number of ways of writing n as a sum of 8 squares.at n=4A000143
- Mixed partitions of n.at n=22A002096
- Value of an urn with n balls of type -1 and n balls of type +1.at n=6A003127
- Number of points on surface of truncated tetrahedron: a(n) = 14*n^2 + 2 for n > 0, a(0)=1.at n=9A005905
- Taylor series related to one in Ramanujan's Lost Notebook.at n=17A006305
- Number of partitions of n into Fibonacci parts (with 2 types of 1).at n=22A007000
- Numbers k such that phi(x) = k has exactly 3 solutions.at n=43A007367
- Coordination sequence T1 for Zeolite Code AWW.at n=24A008045
- Coordination sequence T7 for Zeolite Code MFS.at n=21A008179
- Theta series of D_8 lattice.at n=2A008430
- Expansion of e.g.f. sin(exp(x)-sec(x)).at n=8A013328
- Numbers n such that phi(n) * sigma(n) + 4 is a perfect square.at n=27A015727
- Coordination sequence T6 for Zeolite Code TER.at n=23A016438
- Expansion of 1/(1-x^9-x^10-x^11-x^12-x^13-x^14-x^15-x^16).at n=55A017883
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BRE = Brewsterite (Sr,Ba)2[Al4Si12O32].10H2O starting with a T2 atom.at n=10A019086
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RTH = RUB-13 [B2Si30O64].2R starting with a T2 atom.at n=10A019227
- Numbers k such that the continued fraction for sqrt(k) has period 16.at n=48A020355
- a(n) = a(n-1) + c(n-1) for n >= 2, a( ) increasing, given a(1)=4; where c( ) is complement of a( ).at n=42A022936
- Convolution of natural numbers with A014306.at n=50A023544
- a(n) = s(1)*t(n) + s(2)*t(n-1) + ... + s(k)*t(n+1-k), where k = floor((n+1)/2), s = A023531, t = (1, p(1), p(2), ... ).at n=55A024320