16102
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 24696
- Proper Divisor Sum (Aliquot Sum)
- 8594
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 7872
- Möbius Function
- -1
- Radical
- 16102
- Omega Function (Ω)
- 3
- 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
- no
- Narcissistic Number
- no
- Collatz Steps
- 71
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- yes
- Odd
- no
Appears in sequences
- Numbers k such that 2^k - k + 1 is prime.at n=15A100361
- Numbers k that divide 5^k - 3.at n=6A123061
- Minimal number m such that Sum_digits(n*m)=n.at n=48A131382
- Numbers such that the digital sum base 2 and the digital sum base 5 and the digital sum base 10 all are equal.at n=14A135125
- Numbers k such that (sum of base-2 digits of k) = (sum of base-10 digits of k) = 10.at n=29A152207
- Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,3,4 for x=0,1,2,3,4.at n=14A195972
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 245", based on the 5-celled von Neumann neighborhood.at n=28A271006
- a(n) = the smallest number k>1 such that Sum_{p|k} 0.p = n where p runs through the prime divisors of k.at n=1A276513
- Squarefree terms of A276655.at n=23A276756
- Number of integer partitions of n with no 1's such that no part is a power of any other (unequal) part.at n=52A323053
- Number of integer partitions of n whose number of submultisets is greater than or equal to n.at n=36A325832
- Sum of the lengths of degree of suffix compression achieved for all binary strings of length n.at n=12A339149
- Number of subsets of {1,2,...,n} such that no two elements differ by 1, 2, 4, or 5.at n=30A375186