Properties of the Number 85240

Eighty-Five Thousand Two Hundred Forty

Basics

Value: 85239 → 85240 → 85241

Parity: even

Prime: No

Previous Prime: 85237

Next Prime: 85243

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 5 × 2131

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 2131, 4262

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110011111000

Octal: 246370

Duodecimal: 413B4

Hexadecimal: 14cf8

Square: 7265857600

Square Root: 291.9589012172775

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

Number of ways to write n as an ordered sum of 8 primes (counting 1 as a prime). A341987

Expansion of e.g.f.: 1 + x·exp(x) + x²*exp(2·x) + x³*exp(3·x). A3014

a(n) is the coefficient of xⁿ/n! in exp(x + n·x²/2). A277614

As exponents > 0 in powers of 2 or 3 (A006899) occur in A085238 exactly twice, a self-inverse permutation of natural numbers is induced. A85240