5280
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 48
- Divisor Sum
- 18144
- Proper Divisor Sum (Aliquot Sum)
- 12864
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1280
- Möbius Function
- 0
- Radical
- 330
- Omega Function (Ω)
- 8
- Little Omega Function (ω)
- 4
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 116
- 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 17*2^k - 1 is prime.at n=25A001774
- Generalized sum of divisors function.at n=47A002132
- Weight distribution of Karlin's [28,14,8] double circulant code.at n=7A002606
- Coordination sequence T2 for Zeolite Code EUO.at n=45A008097
- Coordination sequence T2 for Zeolite Code MEP.at n=43A008158
- Coordination sequence T3 for Zeolite Code SGT.at n=45A008231
- Coordination sequence T2 for Zeolite Code YUG.at n=47A008248
- Theta series of A_5 lattice.at n=39A008445
- Area of more than one Pythagorean triangle.at n=8A009127
- Expansion of 1/((1-6x)(1-8x)(1-10x)).at n=3A020584
- a(n) is the position of cube of the n-th prime among the powers of primes (A000961).at n=11A024625
- Positions of cubes among the powers of primes (A000961).at n=19A024627
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = floor( n/2 ), s = natural numbers >= 2, t = natural numbers >= 3.at n=35A024869
- T(2n,n+3), T given by A026769.at n=5A026885
- Number of primitive polynomials of degree n over GF(9).at n=5A027745
- Expansion of 1/((1-3x)(1-4x)(1-5x)(1-12x)).at n=3A028031
- Even elements in 4-Pascal triangle A028275 (by row).at n=51A028279
- Distinct elements in 4-Pascal triangle A028275 (by row).at n=46A028280
- Distinct even elements in 4-Pascal triangle A028275 (by row).at n=27A028282
- Central elements in 4-Pascal triangle A028275 (by row).at n=7A028283