5567
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5880
- Proper Divisor Sum (Aliquot Sum)
- 313
- 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
- 5256
- Möbius Function
- 1
- Radical
- 5567
- 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
- 235
- 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
- Number of partitions of n into 7 unordered relatively prime parts.at n=39A023027
- a(n) = floor( e * 2^n ).at n=11A027437
- Positive numbers having the same set of digits in base 9 and base 10.at n=24A037443
- Numbers whose base-4 representation contains exactly three 1's and three 3's.at n=35A045127
- a(n) = floor(A*a(n-1) + B*a(n-2) + C)/p^r, where p^r is the highest power of p dividing floor(A*a(n-1) + B*a(n-2) + C), A=1.0001, B=1.0001, C=1, p=2.at n=38A053521
- Number of n X 5 binary matrices under row and column permutations and column complementations.at n=7A056204
- Indices of primes in sequence defined by A(0) = 33, A(n) = 10*A(n-1) + 13 for n > 0.at n=3A056253
- Numbers k such that 2^k + 9 is prime.at n=39A057196
- Triangle: self-converse semigroups of order n with k idempotents.at n=23A058118
- Number of self-converse semigroups of order n with 3 idempotents.at n=4A058121
- Dimension of the space of weight n cuspidal newforms for Gamma_1( 99 ).at n=20A063372
- Semiprimes p1*p2 such that p2 > p1 and p2 mod p1 = 8.at n=29A064906
- a(n) = Sum_{d|n} phi(d^3).at n=23A068963
- Centered 22-gonal numbers.at n=22A069173
- Numbers n which when converted to some base between 2 and 9 yield a result with the same digits as n in a different order.at n=43A090144
- Records in A068189 (smallest number k such that n = product of nonzero digits of k, or 0 if no such k exists).at n=42A096867
- a(n) = n-th centered n-gonal number.at n=22A100119
- Duplicate of A056253.at n=3A101832
- Indices of primes in sequence defined by A(0) = 19, A(n) = 10*A(n-1) - 31 for n > 0.at n=15A102021
- The number of primes between n and n^3 (with n and n^3 excluded).at n=37A117491