Properties of the Number -128149

One Hundred Twenty-Eight Thousand One Hundred Forty-Nine

Basics

Value: -128150 → -128149 → -128148

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 18307

Divisors: 1, 7, 18307, 128149

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -11111010010010101

Octal: -372225

Duodecimal: -621B1

Hexadecimal: -1f495

Square: 16422166201

Square Root: 357.97904966631774

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+k+1,n-k) * Fibonacci(k+1). A389933

Expansion of 1/(x^k*(1-x-3·x^k+1)) for k=8. A143459