Properties of the Number 47745

Forty-Seven Thousand Seven Hundred Forty-Five

Basics

Value: 47744 → 47745 → 47746

Parity: odd

Prime: No

Previous Prime: 47743

Next Prime: 47777

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 1061

Divisors: 1, 3, 5, 9, 15, 45, 1061, 3183, 5305, 9549

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101010000001

Octal: 135201

Duodecimal: 23769

Hexadecimal: ba81

Square: 2279585025

Square Root: 218.50629281556172

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) = (4·n³ + 12·n² - 4·n + 3)/3. A322594

a(n) = 324·n² - 564·n + 321 (n>=1). A304617

Expansion of e.g.f. 1/(4 - 3·exp(x))^x/2. A367487

Numbers with five neighboring primes on the hexagonal spiral board of odd numbers. A345654

A discrete analog of Li(n): ceiling ( ∑_k=2..n 1/log₂ (k) ). A47745