Properties of the Number 61997

Sixty-One Thousand Nine Hundred Ninety-Seven

Basics

Value: 61996 → 61997 → 61998

Parity: odd

Prime: No

Previous Prime: 61991

Next Prime: 62003

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 13 × 19 × 251

Divisors: 1, 13, 19, 247, 251, 3263, 4769, 61997

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111001000101101

Octal: 171055

Duodecimal: 2BA65

Hexadecimal: f22d

Square: 3843628009

Square Root: 248.9919677419334

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

Number of permutations of (1,...,n) having n-3 inversions (n>=3). A1893

Composite squarefree numbers n such that p(i)-3 divides n+3, where p(i) are the prime factors of n. A225703

Quasi-Carmichael numbers to base 5: squarefree composites n such that (n,2·3) = 1 and prime p∣n ==> p-5∣n-5. A29558

Number of reduced words of length n in the Weyl group A₁₁. A161459

Number of ways to place 4 nonattacking kings on an n X n board. A61997

Number of nX6 0..1 arrays with rows, antidiagonals and columns unimodal. A223635