Properties of the Number 21358

Twenty-One Thousand Three Hundred Fifty-Eight

Basics

Value: 21357 → 21358 → 21359

Parity: even

Prime: No

Previous Prime: 21347

Next Prime: 21377

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 59 × 181

Divisors: 1, 2, 59, 118, 181, 362, 10679, 21358

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101001101101110

Octal: 51556

Duodecimal: 1043A

Hexadecimal: 536e

Square: 456164164

Square Root: 146.1437648344944

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 reduced words of length n in the Weyl group B₇. A161716

Sum of distinct orders of degree-n permutations. A60179

Solution of the complementary equation a(n) = 3·a(n-1) + b(n-1) - 2, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A295135

a(n) = a(n-1) + a(n-2) - [a(n-4)/4] - [a(n-5)/2] - [a(n-6)/4]. A173597

Position of the n-th prime in A253279. A255999

Decimal expansion of 1/354. A21358