Properties of the Number -71217

Seventy-One Thousand Two Hundred Seventeen

Basics

Value: -71218 → -71217 → -71216

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: Yes

Factorization: 3 ² × 41 × 193

Divisors: 1, 3, 9, 41, 123, 193, 369, 579, 1737, 7913

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -10001011000110001

Octal: -213061

Duodecimal: -35269

Hexadecimal: -11631

Square: 5071861089

Square Root: 266.865134478073

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

Base-11 Armstrong or narcissistic numbers (written in base 10). A161948

Base-10 palindromes that start with 7. A43042

Palindromes in A082939. A82940

Palindromic composite numbers starting with a digit 7. A222728

Number of n X n binary arrays symmetric about the diagonal and under 90-degree rotation with all ones connected only either four adjacent vertically or four adjacent horizontally. A145794

Palindromes which are the concatenation of 3 or more terms of an arithmetic sequence with nonzero difference. A62564