Properties of the Number 63890

Sixty-Three Thousand Eight Hundred Ninety

Basics

Value: 63889 → 63890 → 63891

Parity: even

Prime: No

Previous Prime: 63863

Next Prime: 63901

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 6389

Divisors: 1, 2, 5, 10, 6389, 12778, 31945, 63890

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111100110010010

Octal: 174622

Duodecimal: 30B82

Hexadecimal: f992

Square: 4081932100

Square Root: 252.76471272707352

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) = ∑_j=1..n ∑_k=1..n σ(j·k). A372675

Numbers n such that prime(n) + n is a prime power (A246547). A109314

Numbers n such that n+prime(n) is the square of a prime. A104911

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 841", based on the 5-celled von Neumann neighborhood. A273685

Number of solutions to +- 1 +- 2 +- 3 +- ... +- n = n. A63890