16355
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 19632
- Proper Divisor Sum (Aliquot Sum)
- 3277
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13080
- Möbius Function
- 1
- Radical
- 16355
- Omega Function (Ω)
- 2
- 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
- 53
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- Numbers that are the sum of 3 nonzero 6th powers.at n=23A003359
- Numbers that are the sum of at most 3 nonzero 6th powers.at n=42A004854
- Fibonacci iteration starting with (1, a(n)) leads to a "nine digits anagram".at n=24A034587
- Concatenate n-th prime and n-th composite.at n=37A038530
- a(n) = 2^n - (2*n+1).at n=14A070313
- a(n) = 1^n + 3^n + 5^n.at n=6A074507
- Interprimes which are of the form s*prime, s=5.at n=33A075280
- a(n) = Sum_{k=0..n} (1-(-1)^( floor( (-n-k)/2^k ) )) * 2^(k-1).at n=13A105229
- Semiprimes in A056106.at n=26A113524
- Number of permutations of length n which avoid the patterns 1234, 1243, 3421.at n=11A116762
- Indices n such that the 3 X 3 matrix with components (row by row) prime(n+k), 0 <= k <= 8, has zero determinant.at n=22A117345
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 1, -1), (1, -1, -1), (1, 0, 1)}.at n=9A148812
- a(n) = 12*n^2 + 22*n + 11.at n=36A154106
- Number of partitions of n containing a clique of size 8.at n=43A183565
- Sum of distinct nonzero sixth powers.at n=20A194769
- Recurrence a(n) = a(n-2) + n^M for M=6, starting with a(0)=0, a(1)=1.at n=5A231305
- Sum of sixth powers of odd numbers.at n=2A259322
- Number of compositions of n where the (possibly scattered) maximal subsequence of part i with multiplicity j is marked with a word of length j over an a(i-1)-ary alphabet whose letters appear in alphabetical order.at n=10A261894
- 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 315", based on the 5-celled von Neumann neighborhood.at n=13A287624
- 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 609", based on the 5-celled von Neumann neighborhood.at n=13A289931