Properties of the Number -42281

Forty-Two Thousand Two Hundred Eighty-One

Basics

Value: -42282 → -42281 → -42280

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 42281

Divisors: 1, 42281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010010100101001

Octal: -122451

Duodecimal: -20575

Hexadecimal: -a529

Square: 1787682961

Square Root: 205.62344224333955

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

Primes of form n² + 256. A256776

Primes whose reversal + 1 is a square. A167217

Primes that remain prime through 4 iterations of function f(x) = 9x + 4. A23325

Partial sums of primes, but with a twist. A247657

Denominators of continued fraction convergents to sqrt(782). A42509

Sixth term of weak prime sextet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1). A54833

a(n) = 58·n² - 1. A158668

Collatz trajectory starting at 3711. A179623