14538
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 21
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 29088
- Proper Divisor Sum (Aliquot Sum)
- 14550
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 4844
- Möbius Function
- -1
- Radical
- 14538
- 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
- Number of products of distinct primes <= prime(n) equal to -1 (mod prime(n)).at n=20A024404
- Trajectory of 3 under map n->25n+1 if n odd, n->n/2 if n even.at n=16A037110
- Let p1, p2 be first pair of consecutive primes with difference 2n; let p3, p4 be 2nd such pair; sequence gives "wadi" value p3-p1.at n=28A046728
- Indices of terms in A091074 which are prime numbers.at n=36A091076
- Numbers k such that k and 2*k, taken together are pandigital.at n=3A115922
- Numbers k such that k and 5*k, taken together, are pandigital.at n=3A115925
- Numbers whose square is a permutational number A134640.at n=40A134742
- Number of 4-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=24A187378
- Numbers n such that the Collatz iterations for n and n + 1 have the same length (A078417) but do not meet a certain condition. (See comments.)at n=19A274410
- Number of examples for Simpson's paradox with data items in {0,1,...,n}.at n=6A281700
- Number of tilings of a 5 X n rectangle using n pentominoes of shapes T, N, X.at n=42A361250