Properties of the Number 45081

Forty-Five Thousand Eighty-One

Basics

Value: 45080 → 45081 → 45082

Parity: odd

Prime: No

Previous Prime: 45077

Next Prime: 45083

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5009

Divisors: 1, 3, 9, 5009, 15027, 45081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011000000011001

Octal: 130031

Duodecimal: 22109

Hexadecimal: b019

Square: 2032296561

Square Root: 212.32286735064596

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

Cyclotomic polynomials Phi_n at x=φ, rounded to nearest integer (where φ = τ = (sqrt(5)+1)/2). A63705

Cyclotomic polynomials Phi_n at x=φ, ceiled up (where φ = τ = (sqrt(5)+1)/2). A63707

Central binomial coefficients: binomial(2·n,n) = (2·n)!/(n!)². A984

a(n) = binomial(2n, n)². A2894

Numbers whose base-4 representation contains exactly four 0's and no 3's. A45081