13924
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
- 3
Divisibility
- Divisor Count
- 9
- Divisor Sum
- 24787
- Proper Divisor Sum (Aliquot Sum)
- 10863
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6844
- Möbius Function
- 0
- Radical
- 118
- Omega Function (Ω)
- 4
- 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
- yes
- 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
- 58
- 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
- yes
- Achilles Number
- no
- Perfect Power
- yes
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- a(n) = (3*n+1)^2.at n=39A016778
- a(n) = (4n + 2)^2.at n=29A016826
- a(n) = (5*n + 3)^2.at n=23A016886
- a(n) = (6*n + 4)^2.at n=19A016958
- a(n) = (7*n + 6)^2.at n=16A017054
- a(n) = (8*n+6)^2.at n=14A017138
- a(n) = (9*n + 1)^2.at n=13A017174
- a(n) = (10*n + 8)^2.at n=11A017366
- a(n) = (11*n + 8)^2.at n=10A017486
- a(n) = (12*n+10)^2.at n=9A017642
- Smallest square containing n-th prime as substring.at n=33A029945
- Numbers with 9 divisors.at n=35A030627
- Smallest extension of n-th prime which is a square.at n=33A030671
- Squares with initial digit '1'.at n=38A045784
- Numbers whose sum of divisors and sum of cubes of divisors are relatively prime.at n=37A046659
- Numbers k such that the sum of squares of divisors of k and sum of cubes of divisors of k are relatively prime.at n=39A046683
- Numbers k such that the sum of cubes of divisors of k and the sum of 4th powers of divisors of k are relatively prime.at n=36A046685
- Squares with digital root 1.at n=26A061099
- Squares whose digits sum to a prime.at n=38A065408
- Numbers having exactly four anti-divisors.at n=19A066469