14526
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 32400
- Proper Divisor Sum (Aliquot Sum)
- 17874
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4824
- Möbius Function
- 0
- Radical
- 1614
- 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
- yes
- Harshad Number
- yes
- Narcissistic Number
- no
- Collatz Steps
- 102
- 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
- Numbers k such that phi(k) + 2 | sigma(k + 2).at n=19A015781
- a(n) = floor(surface area of a sphere with radius n).at n=33A066644
- Numbers n such that the numerator of Sum_{i=1..n} (1/i^2), in reduced form, is prime.at n=27A111354
- Numbers n such that sigma(n) and sigma(sigma(n)) are both perfect squares.at n=9A134263
- a(n) = ((6+sqrt(3))^n + (6-sqrt(3))^n)/2.at n=5A147961
- Sum of all odd-indexed parts minus the sum of all even-indexed parts of all partitions of n, with the parts written in nondecreasing order.at n=37A194714
- The Wiener index of the nanostar dendrimer NS[n], defined pictorially in the Karbasioun-Ashrafi-Diudea reference.at n=1A221006
- 25-gonal numbers: a(n) = n*(23*n-21)/2.at n=36A255184
- Numbers k such that (424*10^k - 1)/9 is prime.at n=16A295626
- Numbers n such that n^3 contains the consecutive substring 2,3,5,7.at n=15A295900
- Numbers k such that A307437(k) is divisible by 3.at n=22A342037
- Position of first zero in the n-th differences of the primes, or 0 if it does not appear.at n=15A376678