Properties of the Number 58

Fifty-Eight

Basics

Value: 57 → 58 → 59

Parity: even

Prime: No

Previous Prime: 53

Next Prime: 59

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 29

Divisors: 1, 2, 29, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111010

Octal: 72

Duodecimal: 4A

Hexadecimal: 3a

Square: 3364

Square Root: 7.615773105863909

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

Euler totient function φ(n): count numbers <= n and prime to n. A10

The positive integers. Also called the natural numbers, the whole numbers or the counting numbers, but these terms are ambiguous. A27

Squarefree numbers: numbers that are not divisible by a square greater than 1. A5117

Semiprimes (or biprimes): products of two primes. A1358

Largest squarefree number dividing n: the squarefree kernel of n, rad(n), radical of n. A7947

The composite numbers: numbers n of the form x·y for x > 1 and y > 1. A2808

The nonnegative integers. A1477

The nonnegative even numbers: a(n) = 2n. A5843

Sum of proper divisors (or aliquot parts) of n: sum of divisors of n that are less than n. A1065

Sum of the first n primes. A7504

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