Properties of the Number 76665

Seventy-Six Thousand Six Hundred Sixty-Five

Basics

Value: 76664 → 76665 → 76666

Parity: odd

Prime: No

Previous Prime: 76651

Next Prime: 76667

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 19 × 269

Divisors: 1, 3, 5, 15, 19, 57, 95, 269, 285, 807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010101101111001

Octal: 225571

Duodecimal: 38449

Hexadecimal: 12b79

Square: 5877522225

Square Root: 276.88445243458506

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) = 56·n² + 1. A158660

Numbers k such that k and k² use only the digits 2, 5, 6, 7 and 8. A137111

Numerator of Bernoulli(n,10). A158211

L.g.f.: G(x) = x·exp( ∑_n>=1 G(G(x)ⁿ)/n ) where G(x) = x·exp(∑_n>=1 a(n)*xⁿ/n). A179326

Positive numbers whose square starts and ends with exactly one 5. A348489

G.f.: A(x) = x·exp( ∑_n>=1 A(A(x)ⁿ)/n ). A179325

Numbers k such that φ(k) + φ(k+3) = φ(k+1) + φ(k+2). A76665