12359
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
- 13104
- Proper Divisor Sum (Aliquot Sum)
- 745
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 11616
- Möbius Function
- 1
- Radical
- 12359
- 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
- 156
- 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
- Powers of fifth root of 19 rounded down.at n=16A018168
- Numbers (with nonzero digits only) where A046810 increases.at n=10A046811
- Smallest number m with nonzero digits such that A046810(m)=n.at n=27A046813
- a(n) is the least integer that has exactly n anagrams that are primes.at n=27A046890
- a(n) is the least number with exactly n permutations of digits that are primes.at n=27A046893
- Triangle of numbers relating two sequences (A073157 and A073155).at n=32A073154
- Numbers n such that p(5n) is prime, where p(n) is the number of partitions of n.at n=29A114166
- Number of non-isomorphic (i.e., defined up to a rotation and a reflection) maximal independent sets of the n-cycle graph having 2n isomorphic representatives.at n=49A127683
- Numerator of Bernoulli(n, 5/11).at n=4A159250
- Number of partitions of n that include a pair of consecutive integers.at n=35A237666
- Number of n-digit primes whose sum of digits is 7.at n=27A259144
- Halogen sequence: a(n) = A018227(n)-1.at n=39A271999
- Record numbers of unordered triples {a, b, c} of distinct positive integers from 1 to n such that a*b = c*n.at n=44A292430
- Numbers that are the sum of eight fifth powers in two or more ways.at n=39A345610
- Numbers that are the sum of eight fifth powers in exactly two ways.at n=39A346327
- Numbers k such that the k-th run-length A110969(k) of the sequence of non-prime-powers (A024619) is different from all prior run-lengths.at n=40A373670
- Consecutive states of the linear congruential pseudo-random number generator (967*s + 3041) mod 14406 when started at s=1.at n=8A385078