Properties of the Number 78285

Seventy-Eight Thousand Two Hundred Eighty-Five

Basics

Value: 78284 → 78285 → 78286

Parity: odd

Prime: No

Previous Prime: 78283

Next Prime: 78301

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 17 × 307

Divisors: 1, 3, 5, 15, 17, 51, 85, 255, 307, 921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000111001101

Octal: 230715

Duodecimal: 39379

Hexadecimal: 131cd

Square: 6128541225

Square Root: 279.7945674955109

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 binomial(2k,k)+1 is prime. A66699

Squarefree nonprimes n with a divisor d such that φ(n) divides n+d. A217741

Least nontrivial multiple of the n-th prime beginning with 1. A78285