Properties of the Number 65625

Sixty-Five Thousand Six Hundred Twenty-Five

Basics

Value: 65624 → 65625 → 65626

Parity: odd

Prime: No

Previous Prime: 65617

Next Prime: 65629

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 ⁵ × 7

Divisors: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000000001011001

Octal: 200131

Duodecimal: 31B89

Hexadecimal: 10059

Square: 4306640625

Square Root: 256.17376914898995

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

Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles. A84649

5th binomial transform of (0,0,1,0,0,0, ...). A81135

Numbers with exactly 3 distinct odd prime divisors {3,5,7}. A147576

Partial sum of centered tetrahedral numbers A005894. A132366

Number of singular n X n rational (0,1)-matrices. A410

Decuple factorial, 10-factorial, n!10, n!!!!!!!!!!. A288327

Triangle whose (i,j)-th entry is 5^i-j*binomial(i,j). A38243

a(n) = nⁿ*binomial(n+2, 2). A81133

a(n) = ∏_d∣n A276086(d)^A010051(n/d). A329350

Triangle of coefficients in expansion of (1+5x)ⁿ. A13612