Properties of the Number 80045

Eighty Thousand Forty-Five

Basics

Value: 80044 → 80045 → 80046

Parity: odd

Prime: No

Previous Prime: 80039

Next Prime: 80051

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 7 × 2287

Divisors: 1, 5, 7, 35, 2287, 11435, 16009, 80045

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011100010101101

Octal: 234255

Duodecimal: 3A3A5

Hexadecimal: 138ad

Square: 6407202025

Square Root: 282.9222508039974

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 (n+4) X 11 0..2 matrices with each 5 X 5 subblock idempotent. A224624

T(n,k)=Number of (n+4)X(k+4) 0..2 matrices with each 5X5 subblock idempotent. A224625

s(n,a(n)) = max{s(n,k): k=1,2,...,n}, n >= 1, where s(n,k) = Stirling numbers of the second kind. A24417

Denominators of triangular array: T(n,1)=T(n,n)=1/n and T(n,k)=T(n-1,k-1)+t(n-1,k), 1<k<n. A80045