Properties of the Number 78665

Seventy-Eight Thousand Six Hundred Sixty-Five

Basics

Value: 78664 → 78665 → 78666

Parity: odd

Prime: No

Previous Prime: 78653

Next Prime: 78691

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 5 × 15733

Divisors: 1, 5, 15733, 78665

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001101001001

Octal: 231511

Duodecimal: 39635

Hexadecimal: 13349

Square: 6188182225

Square Root: 280.4728150819612

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

Expansion of g.f. (1+z+z²-sqrt(1+2·z-z²-6·z³-3·z⁴))/(2·z²*(1+z)). A359140

Maximum absolute value of coefficients of characteristic polynomial of M_n, the n X n matrix m_i,j = i mod j. A78665