Properties of the Number -140281

One Hundred Forty Thousand Two Hundred Eighty-One

Basics

Value: -140282 → -140281 → -140280

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 140281

Divisors: 1, 140281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010001111111001

Octal: -421771

Duodecimal: -69221

Hexadecimal: -223f9

Square: 19678758961

Square Root: 374.5410524895769

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

Indices k such that 15 plus the k-th triangular number is a perfect square. A154145

Primes with 26 as smallest positive primitive root. A61731

Numbers k such that (5·10^k - 119)/3 is prime. A271109

Primes of the form 5·p²+5·p+1, where p is a prime. A225874