Properties of the Number -64005

Sixty-Four Thousand Five

Basics

Value: -64006 → -64005 → -64004

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 17 × 251

Divisors: 1, 3, 5, 15, 17, 51, 85, 251, 255, 753

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111101000000101

Octal: -175005

Duodecimal: -31059

Hexadecimal: -fa05

Square: 4096640025

Square Root: 252.9920947381558

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

Odd composite numbers k such that cototient(k) - φ(k) = k - 2*φ(k) is an odd prime. A83255

a(n) = n³ + 5. A84381

Numbers n such that φ(n) = φ(n+11), with Euler's totient function φ = A000010. A276504

a(n) = (8·n+3)*(8·n+7). A146301

Numbers k such that φ(k) = (k-5)/2. A233466