16264
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 32400
- Proper Divisor Sum (Aliquot Sum)
- 16136
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7632
- Möbius Function
- 0
- Radical
- 4066
- Omega Function (Ω)
- 5
- 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
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 115
- 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 aperiodic binary necklaces of length n with no subsequence 00, excluding the necklace "0".at n=26A006206
- Icosahedral numbers: a(n) = n*(5*n^2 - 5*n + 2)/2.at n=18A006564
- 2^(n-1) - n*(n+1)/2.at n=14A014846
- McKay-Thompson series of class 30F for Monster.at n=36A058617
- Number of orbits of length n under the map whose periodic points are counted by A001350.at n=26A060280
- Non-balanced numbers in A015771.at n=28A078549
- Integers that are Rhonda numbers to base 12.at n=14A100971
- Numbers n such that sigma(n) and sigma(sigma(n)) are both perfect squares.at n=15A134263
- Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2^d as a substring of n. Also n may not contain any zero digits.at n=4A135016
- Number of numerical semigroups of multiplicity n and genus n+2.at n=46A180739
- Number of 2:3:sqrt(13) proportioned triangles on a (n+1)X(n+1) grid.at n=17A190112
- McKay-Thompson series of class 30F for the Monster group with a(0) = 1.at n=36A205977
- Number of partitions of n such that the least part is less than its multiplicity.at n=37A240175
- a(n) = phi(2^n) - phi(n^2), with Euler's totient function phi = A000010.at n=14A248643
- Partial sums of A263614 starting at n=2.at n=37A263615
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 97", based on the 5-celled von Neumann neighborhood.at n=13A278866
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 353", based on the 5-celled von Neumann neighborhood.at n=13A281287
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 165", based on the 5-celled von Neumann neighborhood.at n=13A286169
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 237", based on the 5-celled von Neumann neighborhood.at n=13A287079
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 397", based on the 5-celled von Neumann neighborhood.at n=13A288010