Properties of the Number 80065

Eighty Thousand Sixty-Five

Basics

Value: 80064 → 80065 → 80066

Parity: odd

Prime: No

Previous Prime: 80051

Next Prime: 80071

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 67 × 239

Divisors: 1, 5, 67, 239, 335, 1195, 16013, 80065

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011100011000001

Octal: 234301

Duodecimal: 3A401

Hexadecimal: 138c1

Square: 6410404225

Square Root: 282.95759399599086

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 -k..k circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)). A202006

G.f.: A(x) = exp( ∑_n>=1 σ(n)^n-1 * xⁿ/n ). A224439

Number of -4..4 circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)). A202002

Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8). A202010

Value of A121805(k) for k = A367358(n). A367359

Numbers n such that n == 3 modulo (spf(n)+1), where spf(m) is the smallest prime dividing m (A020639). A80065