Properties of the Number 61897

Sixty-One Thousand Eight Hundred Ninety-Seven

Basics

Value: 61896 → 61897 → 61898

Parity: odd

Prime: No

Previous Prime: 61879

Next Prime: 61909

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 11 × 17 × 331

Divisors: 1, 11, 17, 187, 331, 3641, 5627, 61897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000111001001

Octal: 170711

Duodecimal: 2B9A1

Hexadecimal: f1c9

Square: 3831238609

Square Root: 248.79107701041048

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) = numerator of sum of reciprocals of the terms of the continued fraction for H(n) = ∑_k=1..n 1/k. A112286

Square table by antidiagonals of number of routes of length 2k+n on the sides of a 2n-gon from a point to its opposite point. A61897

a(n) is the number of positive integers between successive Mersenne primes. A301580