Properties of the Number 85000

Eighty-Five Thousand

Basics

Value: 84999 → 85000 → 85001

Parity: even

Prime: No

Previous Prime: 84991

Next Prime: 85009

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5 ⁴ × 17

Divisors: 1, 2, 4, 5, 8, 10, 17, 20, 25, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10100110000001000

Octal: 246010

Duodecimal: 41234

Hexadecimal: 14c08

Square: 7225000000

Square Root: 291.547594742265

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

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. A299345

A convolution triangle of numbers obtained from A034687. A49375

Numbers that are the sum of 2 nonzero squares in exactly 5 ways. A25288

Numbers that are the sum of 2 distinct nonzero squares in exactly 5 ways. A25306

Minimal covering numbers. A160559

Numbers k such that k and k² use only the digits 0, 2, 5, 7 and 8. A136916

a(n) = binomial(n+2,3)*5³. A141480

Number of 4-step one or two space at a time rook's tours on an n X n board summed over all starting positions. A187289

Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero. A299340

Maximal determinant of an n X n matrix using the integers 1 to n². A85000