Properties of the Number 64987

Sixty-Four Thousand Nine Hundred Eighty-Seven

Basics

Value: 64986 → 64987 → 64988

Parity: odd

Prime: No

Previous Prime: 64969

Next Prime: 64997

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 13 × 4999

Divisors: 1, 13, 4999, 64987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1111110111011011

Octal: 176733

Duodecimal: 31737

Hexadecimal: fddb

Square: 4223310169

Square Root: 254.9254793071889

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

Let p = n-th prime == 7 mod 8; a(n) = sum of quadratic residues mod p that are > p/2. A282040

Number of n-node trees of height at most 4. A1384

Binomial transform of A135318. A373245

a(n) = n*σ(n). A64987