Properties of the Number 565

Five Hundred Sixty-Five

Basics

Value: 564 → 565 → 566

Parity: odd

Prime: No

Previous Prime: 563

Next Prime: 569

Digit Sum: 16

Digital Root: 7

Palindrome: Yes

Factorization: 5 × 113

Divisors: 1, 5, 113, 565

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000110101

Octal: 1065

Duodecimal: 3B1

Hexadecimal: 235

Square: 319225

Square Root: 23.769728648009426

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

Sequence and first differences (A030124) together list all positive numbers exactly once. A5228

Mian-Chowla sequence (a B₂ sequence): a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that the pairwise sums of elements are all distinct. A5282

Sums of three consecutive primes. A34961

Numbers whose binary expansion is a decimal prime. A36952

Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Palindromic in bases 10 and 11. A29966

T(n,m) = number of 0..m-1 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1. A171307

a(n) = 12·n + 1. A17533

a(n) = 4·n² - 9·n + 6. A54556

Jabotinsky-triangle related to A039647. A39692