Properties of the Number 39105

Thirty-Nine Thousand One Hundred Five

Basics

Value: 39104 → 39105 → 39106

Parity: odd

Prime: No

Previous Prime: 39103

Next Prime: 39107

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 11 × 79

Divisors: 1, 3, 5, 9, 11, 15, 33, 45, 55, 79

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100011000001

Octal: 114301

Duodecimal: 1A769

Hexadecimal: 98c1

Square: 1529201025

Square Root: 197.74984197212396

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 k such that σ(k) = 4*φ(k). A68390

a(n) = n³ + 6·n² + 6·n + 1. A90197

Integers n such that σ(n)/φ(n) is a perfect square. A293391

Numbers n such that the arithmetic, geometric and harmonic means of φ(n) and σ(n) are all integers. A65146

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

Expansion of e.g.f. log( 1 + x² * exp(x) / 2 ). A346750

Numbers k such that σ(k) = φ(k)*ω(k). A73567

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

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

Numbers k such that k, 2·k, 4·k and 8·k are balanced numbers (A020492). A76377