Properties of the Number 61699

Sixty-One Thousand Six Hundred Ninety-Nine

Basics

Value: 61698 → 61699 → 61700

Parity: odd

Prime: No

Previous Prime: 61687

Next Prime: 61703

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 11 × 71 × 79

Divisors: 1, 11, 71, 79, 781, 869, 5609, 61699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000100000011

Octal: 170403

Duodecimal: 2B857

Hexadecimal: f103

Square: 3806766601

Square Root: 248.3928340351227

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

a(n) = (2·n-1)*(n² -n +2)/2. A63488

Number of asymmetric permutation rooted trees with n nodes. A5355

Nonprime numbers n such that φ(n) divides n² - 1, where φ(n) (A000010) is Euler's totient function. A98271

Strong pseudoprimes to base 45. A20271

Generalized Bell numbers. A61699