Properties of the Number 80000

Eighty Thousand

Basics

Value: 79999 → 80000 → 80001

Parity: even

Prime: No

Previous Prime: 79999

Next Prime: 80021

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ⁷ × 5 ⁴

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10011100010000000

Octal: 234200

Duodecimal: 3A368

Hexadecimal: 13880

Square: 6400000000

Square Root: 282.842712474619

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

a(1)=1, a(n) = n·a(floor(n/2)). A98844

Numbers that contain only one nonzero digit. A37124

Numbers of form 8ⁱ*10^j, with i, j >= 0. A25634

a(0) = 0; for n>0, a(n) is the smallest number greater than a(n-1) which does not use any digit used by a(n-1). A30283

Powers of 2 written in base 16. A4655

Numbers whose base 10 digits are a subset of {0, 8}. A204095

Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( ∏_a=1..n ∏_b=1..k (4·sin((2·a-1)*π/(2·n))² + 4·sin((2·b-1)*π/k)²) ). A341533

Paradigm shift sequence for (5,2) production scheme with replacement. A246100

T(n,k) = Number of (n+3) X (k+3) 0..1 arrays with no 4 X 4 subblock diagonal sum not equal the antidiagonal sum. A258957

Numbers with 5 odd divisors. A267696