14175
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
- 30
- Divisor Sum
- 30008
- Proper Divisor Sum (Aliquot Sum)
- 15833
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 6480
- Möbius Function
- 0
- Radical
- 105
- Omega Function (Ω)
- 7
- 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
- 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
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Odd abundant numbers (odd numbers m whose sum of divisors exceeds 2m).at n=30A005231
- a(n) = |1^3 - 2^3 + 3^3 - 4^3 + ... + (-1)^(n+1)*n^3|.at n=30A011934
- Numbers that are the sum of 3 positive cubes in exactly 3 ways.at n=5A025397
- Numbers that are the sum of 3 positive cubes in 3 or more ways.at n=6A025398
- Numbers that are the sum of 3 distinct positive cubes in exactly 3 ways.at n=4A025401
- Numbers that are the sum of 3 distinct positive cubes in 3 or more ways.at n=5A025402
- Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 17.at n=6A031695
- a(n) = 7*n^2.at n=45A033582
- Least number with exactly n odd divisors.at n=29A038547
- Numbers whose base-4 representation contains exactly three 1's and four 3's.at n=19A045128
- Odd numbers divisible by exactly 7 primes (counted with multiplicity).at n=12A046320
- Denominators of Taylor series for tan(x + Pi/4).at n=10A046983
- Denominators of Taylor series for log(1/cos(x)). Also from log(cos(x)).at n=5A046991
- Largest odd divisor of n!.at n=10A049606
- T(n,3), array T as in A050186; a count of aperiodic binary words.at n=42A050188
- Numbers k such that 181*2^k-1 is prime.at n=42A050842
- Generalized Stirling number triangle of the first kind.at n=25A051231
- Numbers that can be written as k/d(k) in four or more ways, where d(k) = number of divisors of k.at n=1A051346
- Duplicate of A051346.at n=1A051520
- Triangle of coefficients T[n,m] of polynomials n, n^2, (n+2n^3)/3, n^2(2+n^2)/3, n(3+10n^2+2n^4)/15, etc. after multiplication by the denominators (A049606).at n=55A064984