2056
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 3870
- Proper Divisor Sum (Aliquot Sum)
- 1814
- 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
- 1024
- Möbius Function
- 0
- Radical
- 514
- Omega Function (Ω)
- 4
- 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
- 125
- 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 n-bead necklaces (turning over is allowed) where complements are equivalent.at n=17A000011
- Sum of 12 positive 9th powers.at n=4A004801
- Numbers that are the sum of 10 positive 10th powers.at n=2A004810
- Numbers that are the sum of 9 positive 11th powers.at n=1A004820
- Numbers that are the sum of at most 10 nonzero 10th powers.at n=29A004905
- Numbers that are the sum of at most 11 nonzero 10th powers.at n=31A004906
- Numbers that are the sum of at most 12 nonzero 10th powers.at n=33A004907
- Numbers that are the sum of at most 9 positive 11th powers.at n=18A004915
- Numbers that are the sum of at most 10 positive 11th powers.at n=19A004916
- Numbers that are the sum of at most 11 positive 11th powers.at n=20A004917
- Numbers that are the sum of at most 12 positive 11th powers.at n=21A004918
- a(n) = n*(n^2 + 1)/2.at n=16A006003
- Generalized Fibonacci numbers A_{n,4}.at n=30A006209
- Diagonals of Pascal's triangle mod 2 interpreted as binary numbers.at n=23A006921
- 'Eban' numbers (the letter 'e' is banned!).at n=34A006933
- Number of self-dual 2-colored necklaces with 2n beads.at n=16A007147
- Coordination sequence T1 for Zeolite Code -ROG.at n=34A009859
- Coordination sequence T3 for Zeolite Code VNI.at n=28A009909
- Partial sums of Catalan numbers (A000108).at n=8A014137
- Apply partial sum operator thrice to primes.at n=10A014150