5859
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 27
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 10240
- Proper Divisor Sum (Aliquot Sum)
- 4381
- 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
- 3240
- Möbius Function
- 0
- Radical
- 651
- Omega Function (Ω)
- 5
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 98
- 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
- Numbers k such that 45*2^k - 1 is prime.at n=47A002242
- Number of graphs on n nodes with 3 cliques.at n=16A005289
- Differences between two positive cubes in exactly 2 ways.at n=5A014440
- Odd numbers k that divide 25^k - 1.at n=45A014962
- Geometric mean of phi(n) and sigma(n) is an integer, n odd.at n=19A015705
- Expansion of 1/(1-x^4-x^5-x^6).at n=46A017828
- Numbers that are the sum of 4 distinct positive cubes in exactly 3 ways.at n=37A025410
- Numbers that are the sum of 4 distinct positive cubes in 3 or more ways.at n=41A025413
- Expansion of q^(5/24) / (eta(q) * eta(q^2)^2) in powers of q.at n=18A029862
- Pair up the numbers.at n=29A030656
- Numbers in which all pairs of consecutive base-5 digits differ by 3.at n=16A033076
- Difference between two positive cubes in more than one way.at n=6A034179
- Numbers ending with '9' that are the difference of two positive cubes.at n=24A038864
- a(n) = (n+3)^3 - n^3.at n=23A038865
- Numbers whose base-5 representation contains exactly three 1's and three 4's.at n=5A045262
- A convolution triangle of numbers generalizing Pascal's triangle A007318.at n=61A049324
- Numbers that are the sum of two (possibly negative) cubes in at least 2 ways.at n=24A051347
- Sum of two (possibly negative) cubes in at least 3 ways.at n=4A051383
- Values of e, the lesser key or generating number for Pythagorean triangles in which S (the odd short leg) and U (the hypotenuse) are twin primes.at n=26A051892
- a(n) = 3*a(n-1) - a(n-2) + 8 with a(0)=1, a(1)=11.at n=7A056124