Properties of the Number 85431

Eighty-Five Thousand Four Hundred Thirty-One

Basics

Value: 85430 → 85431 → 85432

Parity: odd

Prime: No

Previous Prime: 85429

Next Prime: 85439

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 28477

Divisors: 1, 3, 28477, 85431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100110110110111

Octal: 246667

Duodecimal: 41533

Hexadecimal: 14db7

Square: 7298455761

Square Root: 292.28581901967124

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 (n+1) X 6 0..2 arrays with all 2 X 2 subblock sums the same. A183999

Number of (n+1) X 9 0..2 arrays with all 2 X 2 subblock sums the same. A184002

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with all 2X2 subblock sums the same. A184003

a(n) = (2^n-1 + prime(n+1)-prime(n))/2. A85431