Properties of the Number 70191

Seventy Thousand One Hundred Ninety-One

Basics

Value: 70190 → 70191 → 70192

Parity: odd

Prime: No

Previous Prime: 70183

Next Prime: 70199

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 × 709

Divisors: 1, 3, 9, 11, 33, 99, 709, 2127, 6381, 7799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001001000101111

Octal: 211057

Duodecimal: 34753

Hexadecimal: 1122f

Square: 4926776481

Square Root: 264.9358412899244

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 X 4 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically. A207020

a(n) = ∑_k<=n A007955(k) * A000027(n-k+1) = ∑_k<=n A007955(k) * (n-k+1), where A007955(m) = product of divisors of m. A174934

Numbers k such that gcd(3·k, 8^k+1) = 3. A70191