Properties of the Number 78287

Seventy-Eight Thousand Two Hundred Eighty-Seven

Basics

Value: 78286 → 78287 → 78288

Parity: odd

Prime: No

Previous Prime: 78283

Next Prime: 78301

Digit Sum: 32

Digital Root: 5

Palindrome: Yes

Factorization: 11 ² × 647

Divisors: 1, 11, 121, 647, 7117, 78287

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011000111001111

Octal: 230717

Duodecimal: 3937B

Hexadecimal: 131cf

Square: 6128854369

Square Root: 279.7981415234919

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

Smallest numerator of fraction using palindromes that approximates 'φ' to at least n digits after the decimal point. A48433

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 39 ones. A31807

Expansion of (1+2·x+4·x²)/(1-x-8·x⁴). A98581

Least nontrivial multiple of the n-th prime beginning with 3. A78287