Properties of the Number 70065

Seventy Thousand Sixty-Five

Basics

Value: 70064 → 70065 → 70066

Parity: odd

Prime: No

Previous Prime: 70061

Next Prime: 70067

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁴ × 5 × 173

Divisors: 1, 3, 5, 9, 15, 27, 45, 81, 135, 173

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001000110110001

Octal: 210661

Duodecimal: 34669

Hexadecimal: 111b1

Square: 4909104225

Square Root: 264.69794105734934

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

a(n) = ∑_k=0..n-1 binomial(6·k,k) * binomial(6·n-6·k,n-k-1). A386615

Main diagonal of Unlucky array: a(n) = A255543(n,n). A255549

Values of·in positive integer solutions of x² + y⁵ = z³, listed in increasing order of z. (If a z-value occurs twice, list solutions in increasing order of y.) A70065

Smallest primes p = p(k) with (p(k)+p(k+1)+p(k+2))/15 an integer. A168556