Properties of the Number -139442

One Hundred Thirty-Nine Thousand Four Hundred Forty-Two

Basics

Value: -139443 → -139442 → -139441

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 113 × 617

Divisors: 1, 2, 113, 226, 617, 1234, 69721, 139442

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010000010110010

Octal: -420262

Duodecimal: -68842

Hexadecimal: -220b2

Square: 19444071364

Square Root: 373.4193353322776

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

G.f. satisfies A(x) = ∑_n>=0 x^n*(n+1/2) * A(x)^n*(n+1). A384829

Numbers k such that (49·10^k + 383)/9 is prime. A285571