956
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 1680
- Proper Divisor Sum (Aliquot Sum)
- 724
- 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
- 476
- Möbius Function
- 0
- Radical
- 478
- Omega Function (Ω)
- 3
- 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
- 54
- Smith 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
Names
- German
- neunhundertsechsundfünfzig· ordinal: neunhundertsechsundfünfzigste
- English
- nine hundred fifty-six· ordinal: nine hundred fifty-sixth
- Spanish
- novecientos cincuenta y seis· ordinal: 956º
- French
- neuf cent cinquante-six· ordinal: neuf cent cinquante-sixième
- Italian
- novecentocinquantasei· ordinal: 956º
- Latin
- nongenti quinquaginta sex· ordinal: 956.
- Portuguese
- novecentos e cinquenta e seis· ordinal: 956º
Appears in sequences
- Primes multiplied by 4.at n=51A001749
- Numbers k such that phi(k+2) = phi(k) + 2.at n=55A001838
- Expansion of (1+x^3)/((1-x)*(1-x^2)^2*(1-x^3)).at n=30A001973
- Number of multigraphs with 4 nodes and n edges.at n=16A003082
- Number of isomorphism classes of connected irreducible posets with n labeled points.at n=7A003431
- a(0) = 1, a(1) = 2, for n > 1, a(n) = 4*a(n-1) - 2*a(n-2).at n=6A003480
- Number of ways in which n identical balls can be distributed among 5 boxes in a row such that each pair of adjacent boxes contains at least 4 balls.at n=7A005338
- Number of distinct autocorrelations of binary words of length n.at n=38A005434
- Numbers k such that k^16 + 1 is prime.at n=45A006313
- Numbers k such that k^8 + 1 is prime.at n=39A006314
- Number of partitions of n into Fibonacci parts (with 2 types of 1).at n=21A007000
- Numbers k such that phi(x) = k has exactly 3 solutions.at n=37A007367
- 7th-order maximal independent sets in path graph.at n=45A007381
- Coordination sequence T1 for Zeolite Code DOH.at n=19A008078
- a(n+1) = a(n)-b(n+1) if a(n) >= b(n+1) else a(n)+b(n+1), where {b(n)} are the triangular numbers A000217.at n=39A008345
- If a, b in sequence, so is a*b+1.at n=54A009293
- Population of "Triangle" cellular automaton at n-th generation.at n=19A018189
- Divisors of 956.at n=5A018742
- Strobogrammatic numbers: numbers that are the same upside down (using calculator-style numerals).at n=39A018846
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite DFO = DAF-1 [Mg14Al52P66O264].7R.40H2O starting with a T4 atom.at n=4A019008