5831
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 7200
- Proper Divisor Sum (Aliquot Sum)
- 1369
- 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
- 4704
- Möbius Function
- 0
- Radical
- 119
- Omega Function (Ω)
- 4
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 49
- 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
- Euler numbers written backwards.at n=8A004150
- Number of asymmetric permutation rooted trees with n nodes.at n=11A005355
- Numbers that are the sum of 4 distinct positive cubes in exactly 3 ways.at n=34A025410
- Numbers that are the sum of 4 distinct positive cubes in 3 or more ways.at n=38A025413
- a(n)/1000 gives sqrt(n) to 3 places after the decimal point.at n=33A027662
- 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=21A031573
- Composite numbers whose prime factors contain no digits other than 1 and 7.at n=24A036307
- Gaps of 7 in sequence A038593 (upper terms).at n=21A038654
- Numbers ending with '1' that are the difference of two positive cubes.at n=25A038856
- Number of partitions satisfying cn(0,5) + cn(1,5) <= cn(2,5) and cn(0,5) + cn(1,5) <= cn(3,5) and cn(0,5) + cn(4,5) <= cn(2,5) and cn(0,5) + cn(4,5) <= cn(3,5).at n=42A039882
- Numbers having three 8's in base 9.at n=7A043487
- Numbers whose base-3 representation contains no 0's and exactly one 1.at n=29A044966
- Composite numbers n such that the sum of divisors of n, sigma(n), divided by the number of divisors, d(n) and sigma(n) minus n are both rational squares.at n=4A049226
- Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 7 skipped primes.at n=33A050774
- Numbers with a sum of digits equal to their greatest prime factor.at n=40A052021
- Numbers k such that k^8 == 1 (mod 9^3).at n=15A056084
- If p | n, then p+1 | n+1 for composite n.at n=31A056729
- Numbers n such that n | 12^n + 11^n + 10^n + 9^n.at n=40A057239
- Numbers k such that k | 11^k + 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k.at n=29A057286
- Number of 3-rowed binary matrices with n ones and no zero columns, up to row and column permutation.at n=23A058053