Properties of the Number 92

Ninety-Two

Basics

Value: 91 → 92 → 93

Parity: even

Prime: No

Previous Prime: 89

Next Prime: 97

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 23

Divisors: 1, 2, 4, 23, 46, 92

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011100

Octal: 134

Duodecimal: 78

Hexadecimal: 5c

Square: 8464

Square Root: 9.591663046625438

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) = n' = arithmetic derivative of n: a(0) = a(1) = 0, a(prime) = 1, a(m·n) = m·a(n) + n·a(m). A3415

The nonnegative even numbers: a(n) = 2n. A5843

Numbers that are not squarefree. Numbers that are divisible by a square greater than 1. The complement of A005117. A13929

Read n backwards (referred to as R(n) in many sequences). A4086

Pentagonal numbers: a(n) = n*(3·n-1)/2. A326

Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts. A124

Lower Wythoff sequence (a Beatty sequence): a(n) = floor(n*φ), where φ = (1+sqrt(5))/2 = A001622. A201

Evil numbers: nonnegative integers with an even number of 1's in their binary expansion. A1969

Numbers that are the product of exactly three (not necessarily distinct) primes. A14612

Numbers that are not powers of primes p^k (k >= 0); complement of A000961. A24619

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