5739
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 24
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7656
- Proper Divisor Sum (Aliquot Sum)
- 1917
- 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
- 3824
- Möbius Function
- 1
- Radical
- 5739
- Omega Function (Ω)
- 2
- 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
- 173
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- a(n) = a(n-2) + a(n-5).at n=47A001687
- Number of binary words of length n in which the ones occur only in blocks of length at least 4.at n=22A005253
- Quadruples of different integers from [ 1,n ] with no global factor.at n=20A015622
- Powers of fifth root of 22 rounded up.at n=14A018179
- a(n) = least m such that if r and s in {1/1, 1/2, 1/3, ..., 1/n} satisfy r < s, then r < k/m < (k+3)/m < s for some integer k.at n=39A024843
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 75.at n=11A031573
- Numbers having three 7's in base 9.at n=27A043483
- Squarefree nonprimes with property that the concatenation of the prime factors is a palindrome.at n=44A046448
- Semiprimes whose prime factors, when concatenated, yield a palindrome.at n=38A046451
- Number of 3 X 3 stochastic matrices under row and column permutations.at n=34A052282
- Number of positive integers <= 2^n of form 4 x^2 + 9 y^2.at n=16A054173
- a(n) = 4*n^2 - 9*n + 6.at n=38A054556
- Coordination sequence T6 for Zeolite Code MTF.at n=45A057309
- a(n) = p(0) + p(1) + ... + p(n) - n - 1, where p = partition numbers, A000041.at n=23A058682
- a(1) = 9; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=37A074345
- Number of positions that are exactly n moves from the starting position in the Bicube or Bandaged Rubik's Cube puzzle.at n=11A079771
- Number of partitions where no part is a multiple of 9.at n=31A104502
- a(n) = a(n-1) + 2*n^2 with a(1) = 1.at n=19A112524
- Semiprimes in A054556.at n=11A113693
- Semiprimes s such that s-/+2 are primes.at n=34A125215