Properties of the Number 61625

Sixty-One Thousand Six Hundred Twenty-Five

Basics

Value: 61624 → 61625 → 61626

Parity: odd

Prime: No

Previous Prime: 61613

Next Prime: 61627

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ³ × 17 × 29

Divisors: 1, 5, 17, 25, 29, 85, 125, 145, 425, 493

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000010111001

Octal: 170271

Duodecimal: 2B7B5

Hexadecimal: f0b9

Square: 3797640625

Square Root: 248.2438317461282

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

Numbers n that are the hypotenuse of exactly 31 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 31 ways. A97244

RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n). A141812

a(n) is the number of binary strings of length n such that no subsequence of length 5 or less contains 3 or more ones. A120118

Numbers that are the sum of 2 nonzero squares in 7 or more ways. A25298

Numbers that are the sum of 2 nonzero squares in 8 or more ways. A25299

Numbers that are the sum of 2 distinct nonzero squares in 7 or more ways. A25317

Numbers that are the sum of 2 distinct nonzero squares in 8 or more ways. A25318

Numbers that are the sum of 2 nonzero squares in exactly 8 ways. A25291

Numbers that are the sum of 2 distinct nonzero squares in exactly 8 ways. A25309

Number of nX4 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero. A300134