Properties of the Number 61525

Sixty-One Thousand Five Hundred Twenty-Five

Basics

Value: 61524 → 61525 → 61526

Parity: odd

Prime: No

Previous Prime: 61519

Next Prime: 61543

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 23 × 107

Divisors: 1, 5, 23, 25, 107, 115, 535, 575, 2461, 2675

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000001010101

Octal: 170125

Duodecimal: 2B731

Hexadecimal: f055

Square: 3785325625

Square Root: 248.04233509624925

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 k such that 10^k+9^k-1 is prime. A96186

a(n) = n³ + (n+1)³ + (n+2)³ + (n+3)³ + (n+4)³. A27604

Number of n X n binary arrays with all ones connected only in a 0100-1101-0111 pattern in any orientation. A147051

Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 0100-1101-0111 pattern in any orientation. A147053

Surround numbers of an n X 2 rectangle when n is odd. A61525