Properties of the Number 61907

Sixty-One Thousand Nine Hundred Seven

Basics

Value: 61906 → 61907 → 61908

Parity: odd

Prime: No

Previous Prime: 61879

Next Prime: 61909

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 31 × 1997

Divisors: 1, 31, 1997, 61907

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111000111010011

Octal: 170723

Duodecimal: 2B9AB

Hexadecimal: f1d3

Square: 3832476649

Square Root: 248.81117338254728

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

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 705", based on the 5-celled von Neumann neighborhood. A273419

Numbers k such that 7·R_k+2 - 2·10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k. A257031

Squares formed by concatenating k and 2·k+1. A309828

The iterative cycle: n -> sum of digits of n² has only four distinct elements. A61907