Properties of the Number -64285

Sixty-Four Thousand Two Hundred Eighty-Five

Basics

Value: -64286 → -64285 → -64284

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 13 × 23 × 43

Divisors: 1, 5, 13, 23, 43, 65, 115, 215, 299, 559

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111101100011101

Octal: -175435

Duodecimal: -31251

Hexadecimal: -fb1d

Square: 4132561225

Square Root: 253.54486782421765

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

Numbers n such that σ(n) = 2*φ(n). A62699

Number of preferential arrangements of n labeled elements when at least k=3 elements per rank are required. A102233

Numbers n such that σ(n) = φ(3n). A74891

Numbers k such that both k and 2·k are balanced numbers (A020492). A76375

Numbers k such that k, 2·k and 4·k are balanced numbers (A020492). A76376

Expansion of ∏_k>=1 (1 - x^k)²³. A10829

Odd integers m such that φ(m) | σ(m). A15715

Numbers k such that gcd(σ(k), φ(k)) (A009223) attains record values. A222711

T(n,k)=Number of idempotent n X n -k..k matrices of rank n-1. A223450

Numbers k such that σ(k) = φ(k·bigomega(k)). A68400