8664
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
- 24
- Divisor Sum
- 22860
- Proper Divisor Sum (Aliquot Sum)
- 14196
- 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
- 2736
- Möbius Function
- 0
- Radical
- 114
- Omega Function (Ω)
- 6
- 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
- 140
- 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
- Worst cases for Pierce expansions (numerators).at n=32A006537
- Coordination sequence for NiAs(1), As position.at n=38A009943
- Sum of n plus its prime factors associated with A020700.at n=20A020905
- Numbers k that divide the (right) concatenation of all numbers <= k written in base 19 (most significant digit on left).at n=43A029464
- 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 23.at n=33A031521
- a(n) = 6*n^2.at n=38A033581
- Denominators of continued fraction convergents to sqrt(905).at n=3A042749
- Digits composite, each digit minus 1 is prime, sum of digits minus 1 is prime, difference of digits (in absolute value) minus 1 is prime.at n=41A058229
- When expressed in base 4 and then interpreted in base 6, is a multiple of the original number.at n=19A062921
- Multiples of 24 whose digits also sum to 24.at n=34A066270
- Numbers k such that the sum over the prime divisors of k equals the number of divisors of k.at n=34A069234
- Numbers k such that the sum of the digits of k equals the sum of the prime divisors of k.at n=36A070275
- Numbers n such that the digital binary sum of n equals core(n), the squarefree part of n.at n=34A077476
- Iterates of A080067.at n=10A080068
- 3*Volume of the root-n Waterman polyhedron of void-center type as defined in A119870.at n=41A119878
- Smallest area of any triangle with integer sides a <= b <= c and inradius n.at n=37A120572
- Partial sums of A120769.at n=41A120770
- Number of locally perfect perfect graphs on n nodes.at n=7A123433
- Numbers k such that the sum of the first k primes is prime and the sum of the squares of the first k primes is also prime.at n=42A124225
- Numbers k such that k/A000005(k) is a square.at n=32A145450