Properties of the Number -139748

One Hundred Thirty-Nine Thousand Seven Hundred Forty-Eight

Basics

Value: -139749 → -139748 → -139747

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 ² × 23 × 31

Divisors: 1, 2, 4, 7, 14, 23, 28, 31, 46, 49

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100010000111100100

Octal: -420744

Duodecimal: -68A58

Hexadecimal: -221e4

Square: 19529503504

Square Root: 373.8288378389233

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) = ∑_k=0..n binomial(n+2·k+1,n-k) * Fibonacci(k+1). A390826

Expansion of φ(-q⁶) / φ(-q) in powers of q where φ() is a Ramanujan θ function. A262968