Properties of the Number 90041

Ninety Thousand Forty-One

Basics

Value: 90040 → 90041 → 90042

Parity: odd

Prime: No

Previous Prime: 90031

Next Prime: 90053

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 7 × 19 × 677

Divisors: 1, 7, 19, 133, 677, 4739, 12863, 90041

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101111110111001

Octal: 257671

Duodecimal: 44135

Hexadecimal: 15fb9

Square: 8107381681

Square Root: 300.06832555269807

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 n with property that n² starts and ends with 81. A159775

Catalan numbers: C(n) = binomial(2n,n)/(n+1) = (2n)!/(n!(n+1)!). A108

a(n) = binomial(3·n,n)/(2·n+1) (enumerates ternary trees and also noncrossing trees). A1764

Number of dissections of a polygon: binomial(4·n, n)/(3·n + 1). A2293

a(n) = binomial(5·n, n)/(4·n + 1). A2294

Number of dissections of a polygon: binomial(6n,n)/(5n+1). A2295

Decimal expansion of the higher-order exponential integral E(x, m=2, n=1) at x=1. A163931

Number of dissections of a polygon: binomial(7n,n)/(6n+1). A2296

Number of crossing set partitions of {1,2,...,n}. A16098

Triangle of central factorial numbers |t(2n,2n-2k)| read by rows. A8955