Properties of the Number 56564

Fifty-Six Thousand Five Hundred Sixty-Four

Basics

Value: 56563 → 56564 → 56565

Parity: even

Prime: No

Previous Prime: 56543

Next Prime: 56569

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 79 × 179

Divisors: 1, 2, 4, 79, 158, 179, 316, 358, 716, 14141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101110011110100

Octal: 156364

Duodecimal: 28898

Hexadecimal: dcf4

Square: 3199486096

Square Root: 237.83187338958587

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that k and k+1 have same sum of divisors. A2961

Numbers k such that σ(k) divides σ(k+1), where σ(k) is sum of positive divisors of k. A58072

Numbers k such that k and k+1 have the same sum but an unequal number of divisors. A54007

Numbers n such that σ(n+1) - σ(n) = k·n for some integer k, where σ(n) = A000203 (sum of divisors of n). A223136

Table of consecutive numbers with the same sum of divisors. A225757

Numbers m such that the δ(m) = abs(σ(m+1)/(m+1) - σ(m)/(m)) is smaller than δ(k) for all k < m. A335071

Numbers k such that σ(k)*ω(k) = σ(k+1)*ω(k+1), where ω(k) is the number of distinct prime divisors of n (A001221). A63071

Non-palindromic numbers such that the two largest proper divisors are palindromes having at least two digits and no other divisor is a palindrome with at least two digits. A74889

Number of times primes can be produced by taking the absolute difference between the n-th triangular number and another triangular number. A56564