5887
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 6968
- Proper Divisor Sum (Aliquot Sum)
- 1081
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4872
- Möbius Function
- 0
- Radical
- 203
- Omega Function (Ω)
- 3
- 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
- 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
- 124
- 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
- Numerator of (2/Pi)*Integral_{0..inf} (sin x / x)^n dx.at n=6A002297
- a(n) = n^3 + 3*n + 1.at n=18A005491
- Coordination sequence for alpha-Mn, Position Mn3.at n=20A009952
- Numbers k that divide s(k), where s(1)=1, s(j)=7*s(j-1)+j.at n=34A014854
- Numbers k such that k | 6^k + 1.at n=8A015953
- Numbers k such that k | 13^k + 1.at n=19A015963
- a(n) = 7*n^2.at n=29A033582
- Multiplicity of highest weight (or singular) vectors associated with character chi_50 of Monster module.at n=40A034438
- Sums of 11 distinct powers of 2.at n=14A038462
- a(n) = (9*n^2 + 3*n + 2)/2.at n=36A038764
- (s(n)+1)/9, where s(n)=n-th base 9 palindrome that starts with 8.at n=26A043079
- Numbers whose base-4 representation contains exactly two 1's and four 3's.at n=21A045123
- Numerator of (1/Pi)*Integral_{x=0..oo} (sin(x)/x)^n dx.at n=6A049330
- Number of labeled trees with a forbidden limb of length 3.at n=7A052323
- Numbers k such that the squarefree part of k equals A062799(k).at n=18A069551
- a(n) = (p^2 - p + 2)/2 for p = prime(n); number of squares modulo p^2.at n=28A072205
- Right side of the triangle A075652.at n=43A075649
- a(n) = floor(average of first n cubes).at n=27A078618
- Number of partitions p of n for which Odd(p) = Odd(p') (mod 4), where p' is the conjugate of p.at n=33A097566
- G.f. A(x) satisfies: A(x)^2 equals the g.f. of A110637, which consists entirely of numbers 1 through 8.at n=15A112571