Properties of the Number 26172

Twenty-Six Thousand One Hundred Seventy-Two

Basics

Value: 26171 → 26172 → 26173

Parity: even

Prime: No

Previous Prime: 26171

Next Prime: 26177

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 727

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 727

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110011000111100

Octal: 63074

Duodecimal: 13190

Hexadecimal: 663c

Square: 684973584

Square Root: 161.77762515255316

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

Triangle T(n,k) by rows: number of ways k dominoes can be placed on an n X n chessboard, k>=0. A242861

Main diagonal of square table A086620 of coefficients, T(n,k), of xⁿ*y^k in f(x,y) that satisfies f(x,y) = 1/(1-x-y) + xy·f(x,y)². A86621

a(n) = number of triangles that can be formed from the points of a 3 X n grid. A262402

Number of 1's in row n of A143589 (a Kolakoski fan). A143591

Number of 3-matchings of the n X n grid graph. A243206

Numbers m such that σ(m)*τ(m) is a square but σ(m)/τ(m) is not an integer. A327831

Number of 2's in row n of A143589 (a Kolakoski fan). A143592

a(n) = ∑_k=1..n (-1)^k+1 * floor(n/(2·k-1))³. A350163

a(n) is the first position where the digits of n occur simultaneously in the decimal expansions of π and e. A381980

Number of permutations of length n which avoid the patterns 1234, 3421, 4312. A116756