Properties of the Number 61287

Sixty-One Thousand Two Hundred Eighty-Seven

Basics

Value: 61286 → 61287 → 61288

Parity: odd

Prime: No

Previous Prime: 61283

Next Prime: 61291

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 31 × 659

Divisors: 1, 3, 31, 93, 659, 1977, 20429, 61287

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111101100111

Octal: 167547

Duodecimal: 2B573

Hexadecimal: ef67

Square: 3756096369

Square Root: 247.56211341802688

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 ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and w+2x+3y>1. A211622

Expansion of 1/((1-2x)(1-4x)(1-5x)(1-12x)). A25964

Integer part of square root of n-th Fibonacci number. A61287

Number of 3Xn 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281695