Properties of the Number 85143

Eighty-Five Thousand One Hundred Forty-Three

Basics

Value: 85142 → 85143 → 85144

Parity: odd

Prime: No

Previous Prime: 85133

Next Prime: 85147

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 101 × 281

Divisors: 1, 3, 101, 281, 303, 843, 28381, 85143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110010010111

Octal: 246227

Duodecimal: 41333

Hexadecimal: 14c97

Square: 7249330449

Square Root: 291.79273465938115

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 higher order recursion triangle sequence: m=3;l=3;e(n,k,m)=(l·k + m - 1)e(n - 1, k, m) + (m·n - l·k + 1 - m)e(n - 1, k - 1, m). A156278

Numbers k such that (10^k)/2 - 1 is prime. A295988

Number of ways to place 5 points on an n X n X n triangular grid so that no pair of them has distance sqrt(3). A244503

Triangle table from number wall of reversion of Fibonacci numbers. A85143