Properties of the Number -117889

One Hundred Seventeen Thousand Eight Hundred Eighty-Nine

Basics

Value: -117890 → -117889 → -117888

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 117889

Divisors: 1, 117889

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7989 Try Today's Challenge

Representations

Binary: -11100110010000001

Octal: -346201

Duodecimal: -58281

Hexadecimal: -1cc81

Square: 13897816321

Square Root: 343.3496759864497

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) = number of Egyptian fractions 1 = 1/x₁ + ... + 1/x_k (for any k), 0<x₁<...<x_k=n. A92669

G.f.: ∑_n>=0 ( exp(-1/(1-n·x)) / (1-n·x)ⁿ ) / n!. A245110

Nonzero elements of A092669. A92672

Primes p1 such that the sum of 9 consecutive primes, p1+p2+p3+p4+p5+p6+p7+p8+p9, and the three sums (p1+p2+p3), (p4+p5+p6), (p7+p8+p9) are all prime numbers. A343683