Properties of the Number 85021

Eighty-Five Thousand Twenty-One

Basics

Value: 85020 → 85021 → 85022

Parity: odd

Prime: Yes

Previous Prime: 85009

Next Prime: 85027

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 85021

Divisors: 1, 85021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100110000011101

Octal: 246035

Duodecimal: 41251

Hexadecimal: 14c1d

Square: 7228570441

Square Root: 291.5836072209822

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 n such that A003144(n) = floor(α*n) + 1, where α = 1.839... is the positive real zero of x³-x²-x-1. A275158

Primes of the form 14·k² + 26·k + 13. A176617

Primes of the form 20n²+8n+1. A154405

Number of prime factors of cyclotomic(n,2), which is A019320(n), the value of the n-th cyclotomic polynomial evaluated at x=2. A85021

Decimal expansion of d(n) = log(n) + log(log(n)) - prime(n)/n at n = 2688, a (local?) maximum. A255251