Properties of the Number 61628

Sixty-One Thousand Six Hundred Twenty-Eight

Basics

Value: 61627 → 61628 → 61629

Parity: even

Prime: No

Previous Prime: 61627

Next Prime: 61631

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 × 31 × 71

Divisors: 1, 2, 4, 7, 14, 28, 31, 62, 71, 124

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000010111100

Octal: 170274

Duodecimal: 2B7B8

Hexadecimal: f0bc

Square: 3798010384

Square Root: 248.2498741187999

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 rotationally symmetric polyominoes with n cells (that is, polyominoes with exactly the symmetry group C₂ generated by a 180-degree rotation). A6747

Numbers k such that ∑_j=1..k-1 j·2^j-1 is prime. A119529

Ooguri-Vafa invariants of disk degeneracies for brane I or brane II in the O(K) -> P² geometry. A61628