Properties of the Number 61392

Sixty-One Thousand Three Hundred Ninety-Two

Basics

Value: 61391 → 61392 → 61393

Parity: even

Prime: No

Previous Prime: 61381

Next Prime: 61403

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 1279

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111111010000

Octal: 167720

Duodecimal: 2B640

Hexadecimal: efd0

Square: 3768977664

Square Root: 247.77409065517728

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

Greatest number m such that the fractional part of (π-2)^A153719(m) >= 1-(1/m). A153723

Greatest number m such that the fractional part of (π-2)^A153720(n) >= 1-(1/m). A153724

a(n) = 60·2ⁿ - 48 (n>=1). A304376

Expansion of e.g.f. exp(2·x*G(x)²) where G(x) = 1 + x·G(x)³ is the g.f. of A001764. A380603

a(n) = a(floor(n/3)) + a(ceiling(n/3)) with a(0) = 0 and a(1) = 1. A61392

Decimal expansion of the surface area of a bilunabirotunda with unit edges. A386753