Properties of the Number 20597

Twenty Thousand Five Hundred Ninety-Seven

Basics

Value: 20596 → 20597 → 20598

Parity: odd

Prime: No

Previous Prime: 20593

Next Prime: 20599

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 43 × 479

Divisors: 1, 43, 479, 20597

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000001110101

Octal: 50165

Duodecimal: BB05

Hexadecimal: 5075

Square: 424236409

Square Root: 143.51654956833374

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 the sum of the squares of the first k primes is divisible by k. A111441

Coordination sequence for σ-CrFe, Position Xa. A9962

Consecutive states of the linear congruential pseudo-random number generator (1291·s + 4621) mod 21870 when started at s=1. A385337

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 18. A50967

a(1) = 2, a(n) = a(n-1) + 3*(a(n-1)-floor(a(n-1)^1/3)³). A96295

Smallest nonempty set S containing prime divisors of 5k+3 for each k in S. A20597