Properties of the Number 80545

Eighty Thousand Five Hundred Forty-Five

Basics

Value: 80544 → 80545 → 80546

Parity: odd

Prime: No

Previous Prime: 80537

Next Prime: 80557

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 89 × 181

Divisors: 1, 5, 89, 181, 445, 905, 16109, 80545

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10011101010100001

Octal: 235241

Duodecimal: 3A741

Hexadecimal: 13aa1

Square: 6487497025

Square Root: 283.8045101826255

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 length 6 1..(n+1) arrays with every leading partial sum divisible by 2 or 3. A257068

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-1111-1000 pattern in any orientation. A146718

T(n,k)=Number of length n 1..(k+1) arrays with every leading partial sum divisible by 2 or 3. A257062

Characteristic function of {1} union {odd primes}: 1 if n is 1 or an odd prime, else 0. A80545