Properties of the Number -68510

Sixty-Eight Thousand Five Hundred Ten

Basics

Value: -68511 → -68510 → -68509

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 13 × 17 × 31

Divisors: 1, 2, 5, 10, 13, 17, 26, 31, 34, 62

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000101110011110

Octal: -205636

Duodecimal: -33792

Hexadecimal: -10b9e

Square: 4693620100

Square Root: 261.7441498868695

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

a(n) = Sum of all divisors of all numbers < (n+1)². A168013

a(1)=2; for n > 1, a(n) is the largest number <= 2·a(n-1) divisible by n. A178901

a(n) = 2·n³ + 9·n² + 9·n. A303609

a(n) = (2n² - n + 2) * (2n)! / ((n + 1) * (n + 2) * n!²). A349695