Properties of the Number 70638

Seventy Thousand Six Hundred Thirty-Eight

Basics

Value: 70637 → 70638 → 70639

Parity: even

Prime: No

Previous Prime: 70627

Next Prime: 70639

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 61 × 193

Divisors: 1, 2, 3, 6, 61, 122, 183, 193, 366, 386

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001001111101110

Octal: 211756

Duodecimal: 34A66

Hexadecimal: 113ee

Square: 4989727044

Square Root: 265.7781029355127

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

G.f.: exp( ∑_n>=1 A002129(n²)*xⁿ/n ), where A002129(n) is the excess of sum of odd divisors of n over sum of even divisors of n. A225925

Numbers k such that 8·10^k + 7·R_k - 6 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A103089

Number of (n+1) X 2 0..3 arrays with every 2 X 2 subblock having nonzero determinant and commuting with every horizontal or vertical neighbor. A206336

Duplicate of A070438. A70638