Properties of the Number 61286

Sixty-One Thousand Two Hundred Eighty-Six

Basics

Value: 61285 → 61286 → 61287

Parity: even

Prime: No

Previous Prime: 61283

Next Prime: 61291

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 30643

Divisors: 1, 2, 30643, 61286

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111101100110

Octal: 167546

Duodecimal: 2B572

Hexadecimal: ef66

Square: 3755973796

Square Root: 247.5600937146373

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 partitions of n containing at least one part m-5 if m is the largest part. A212545

Exponential transform of the tetrahedral numbers (A000292). A281231

Least number·such that xⁿ has n digits equal to k. Case k = 3. A285450

a(n) is the least k such that A033273(k) is equal to (A033273(n·k + 1) - 1)/n where A033273(n) is the number of nonprime divisors of n. A352256

Smallest integer for which the number of divisors is the n-th prime. A61286