Properties of the Number 80515

Eighty Thousand Five Hundred Fifteen

Basics

Value: 80514 → 80515 → 80516

Parity: odd

Prime: No

Previous Prime: 80513

Next Prime: 80527

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 16103

Divisors: 1, 5, 16103, 80515

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011101010000011

Octal: 235203

Duodecimal: 3A717

Hexadecimal: 13a83

Square: 6482665225

Square Root: 283.75165197756996

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

Numbers that are the sum of six fourth powers in seven or more ways. A345564

Numbers that are the sum of six fourth powers in exactly seven ways. A345819

Expansion of (x⁴+x³+x²-x-1)/(x⁴+2·x³+2·x²+x-1). A272642

Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 2 4 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 2 4 6 or 7. A252517

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 2 4 6 or 7 and every 3X3 diagonal and antidiagonal sum equal to 0 2 4 6 or 7. A252523

a(1) = 2, a(n) = smallest n-th power obtained by inserting digits anywhere in a(n-1). A80515

Number of nX3 0..3 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..3 introduced in row major order. A240626