Properties of the Number 91872

Ninety-One Thousand Eight Hundred Seventy-Two

Basics

Value: 91871 → 91872 → 91873

Parity: even

Prime: No

Previous Prime: 91867

Next Prime: 91873

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁵ × 3 ² × 11 × 29

Divisors: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

Today's Target

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Representations

Binary: 10110011011100000

Octal: 263340

Duodecimal: 45200

Hexadecimal: 166e0

Square: 8440464384

Square Root: 303.1039425675621

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 orbits of length n under the map whose periodic points are counted by A005809. A60170

Records in A007374. A105207

Primitive terms of A388022: numbers k that satisfy σ(k) AND 3·k = 3·k, but none of whose proper divisors satisfy the same condition. A388025

Numbers that are the concatenation of the digit-wise multiplication of k·m, with 1 < m < k, keeping the leading digits of k when m has fewer digits. A392040

Primes arising in A086678. A91872

Number of nX5 array permutations with each element not moved or moved diagonally or antidiagonally by one. A189276