Properties of the Number 80385

Eighty Thousand Three Hundred Eighty-Five

Basics

Value: 80384 → 80385 → 80386

Parity: odd

Prime: No

Previous Prime: 80369

Next Prime: 80387

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 23 × 233

Divisors: 1, 3, 5, 15, 23, 69, 115, 233, 345, 699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011101000000001

Octal: 235001

Duodecimal: 3A629

Hexadecimal: 13a01

Square: 6461748225

Square Root: 283.52248588074985

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

O.g.f.: (1 + 4·x)/((1 + x)*sqrt(1 - 8·x)). A333565

Numbers k such that there are exactly 7 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 7. A80385