Properties of the Number -86668

Eighty-Six Thousand Six Hundred Sixty-Eight

Basics

Value: -86669 → -86668 → -86667

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: Yes

Factorization: 2 ² × 47 × 461

Divisors: 1, 2, 4, 47, 94, 188, 461, 922, 1844, 21667

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101001010001100

Octal: -251214

Duodecimal: -421A4

Hexadecimal: -1528c

Square: 7511342224

Square Root: 294.3942934229534

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

Integers k, not divisible by any of their digits, such that ∑_{j = digits of k} k/j is an integer different from k. A393454

a(n) is equal to the number of positive integers m less than or equal to 10ⁿ such that m is not divisible by at least one of the primes 2,7 and is not divisible by at least one of the primes 3,5. A128956