Properties of the Number 61513

Sixty-One Thousand Five Hundred Thirteen

Basics

Value: 61512 → 61513 → 61514

Parity: odd

Prime: No

Previous Prime: 61511

Next Prime: 61519

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 137 × 449

Divisors: 1, 137, 449, 61513

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000001001001

Octal: 170111

Duodecimal: 2B721

Hexadecimal: f049

Square: 3783849169

Square Root: 248.0181444975347

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

Composite numbers which in base 8 contain their largest proper factor as a substring. A63167

Number of 4 X n 0..1 arrays with diagonals and antidiagonals unimodal and rows nondecreasing. A223951

Duplicate of A063167. A63878

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111 pattern in any orientation. A146231

a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 2. A61513