Properties of the Number 26858

Twenty-Six Thousand Eight Hundred Fifty-Eight

Basics

Value: 26857 → 26858 → 26859

Parity: even

Prime: No

Previous Prime: 26849

Next Prime: 26861

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 13 × 1033

Divisors: 1, 2, 13, 26, 1033, 2066, 13429, 26858

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110100011101010

Octal: 64352

Duodecimal: 13662

Hexadecimal: 68ea

Square: 721352164

Square Root: 163.88410539158457

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

a(n) = (A048898(n)² + 1)/5ⁿ, n >= 0. A210848

Average of row n of A082259. A82262

a(1) = 1; a(n+1) = 1 + ∏_k∣n a(k), product is over the positive divisors, k, of n. A68334

Sequence of denominators of the continued fraction derived from the sequence of the numbers of distinct factors of a number (A001221, also called ω(n)). A112596

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 19. A31607

Number of partitions of n into parts not of the form 17k, 17k+4 or 17k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 7 are greater than 1. A35965

Number of letters in n (in Italian). A26858