Properties of the Number 78538

Seventy-Eight Thousand Five Hundred Thirty-Eight

Basics

Value: 78537 → 78538 → 78539

Parity: even

Prime: No

Previous Prime: 78517

Next Prime: 78539

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 × 107 × 367

Divisors: 1, 2, 107, 214, 367, 734, 39269, 78538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001011001010

Octal: 231312

Duodecimal: 3954A

Hexadecimal: 132ca

Square: 6168217444

Square Root: 280.24632022561866

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) = 10·a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 10. A87799

Smallest k > 6 such that sigma_n(k)/φ(k) is an integer. A78538