Properties of the Number 80516

Eighty Thousand Five Hundred Sixteen

Basics

Value: 80515 → 80516 → 80517

Parity: even

Prime: No

Previous Prime: 80513

Next Prime: 80527

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 20129

Divisors: 1, 2, 4, 20129, 40258, 80516

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 10011101010000100

Octal: 235204

Duodecimal: 3A718

Hexadecimal: 13a84

Square: 6482826256

Square Root: 283.7534140763772

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+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010101. A260833

Number of (n+1) X (n+1) -7..7 symmetric matrices with every 2 X 2 subblock having sum zero and three distinct values. A211442

Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010101. A260840

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010101. A260841

a(1) = 5, a(n) = smallest n-th power obtained by inserting digits anywhere in a(n-1). A80516