Properties of the Number 558

Five Hundred Fifty-Eight

Basics

Value: 557 → 558 → 559

Parity: even

Prime: No

Previous Prime: 557

Next Prime: 563

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 31

Divisors: 1, 2, 3, 6, 9, 18, 31, 62, 93, 186

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000101110

Octal: 1056

Duodecimal: 3A6

Hexadecimal: 22e

Square: 311364

Square Root: 23.62202362203543

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

Number of (0,1) matrices with n ones and no zero rows or columns, up to row and column permutations. A49311

Infinite sequence starting with a(0)=0 such that A049820(a(k)) = a(k-1) for all k>=1, where A049820(n) = n - (number of divisors of n). A259934

a(n) = n*(n+5)/2. A55998

Numbers whose ternary expansion contains no 1's. A5823

Toothpick sequence starting at the outside corner of an infinite square from which protrudes a half toothpick. A153006

Numbers that are the sum of 12 positive 5th powers. A3357

Irregular triangle read by rows with zeros removed where T(n,k) is the number of integer partitions of n with k distinct multiplicities, n > 0. A325242

Number of distinct products ij with 1 <= i, j <= n (number of distinct terms in n X n multiplication table). A27424

Numbers n such that BCR(n) = n, where BCR = binary-complement-and-reverse = take one's complement then reverse bit order. A35928

Product of exactly four primes, three of which are distinct (p²*q·r). A85987