Properties of the Number 26257

Twenty-Six Thousand Two Hundred Fifty-Seven

Basics

Value: 26256 → 26257 → 26258

Parity: odd

Prime: No

Previous Prime: 26251

Next Prime: 26261

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 11 ² × 31

Divisors: 1, 7, 11, 31, 77, 121, 217, 341, 847, 2387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011010010001

Octal: 63221

Duodecimal: 13241

Hexadecimal: 6691

Square: 689430049

Square Root: 162.0401184892186

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 there is 1 prime between 100·k and 100·k + 99. A186393

Table read by antidiagonals: T(n, k) is the sum of the numbers inside the k-th square of size n X n when the square spiral is tiled with these squares, where each tile contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one tile. A341363

Upper (1/5,1/2) midsequence of (2ⁿ) and (5·n); see Comments. A390562

A q-Catalan triangle for q=2. A154829

a(n) is the maximum value of the quartet index of a bifurcating rooted tree with n leaves. A300445

a(n) = (1/2)*(s(n) + 1), where s(n) is the n-th odd number in A026255. A26257