Properties of the Number 91048

Ninety-One Thousand Forty-Eight

Basics

Value: 91047 → 91048 → 91049

Parity: even

Prime: No

Previous Prime: 91033

Next Prime: 91079

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 19 × 599

Divisors: 1, 2, 4, 8, 19, 38, 76, 152, 599, 1198

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110001110101000

Octal: 261650

Duodecimal: 44834

Hexadecimal: 163a8

Square: 8289738304

Square Root: 301.7416113167026

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

T(n,k)=Number of nXk binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once. A269011

Expansion of χ(x)² / χ(-x²)⁶ in powers of·where χ() is a Ramanujan θ function. A224916

Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k peaks of width 1 (i.e., UHD configurations, where U=(0,1), H(1,0), D=(0,-1)), (n>=2, k>=0). A273715

Number of n X 4 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once. A269007

Number of 6Xn binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once. A269016

a(n) = the number of steps needed to reach the final value of n via repeated interpretation of n as a base b+1 number where b is the largest digit of n. A91048