Properties of the Number -87819

Eighty-Seven Thousand Eight Hundred Nineteen

Basics

Value: -87820 → -87819 → -87818

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 73 × 401

Divisors: 1, 3, 73, 219, 401, 1203, 29273, 87819

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101011100001011

Octal: -253413

Duodecimal: -429A3

Hexadecimal: -1570b

Square: 7712176761

Square Root: 296.34270701334964

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 (k+1) * binomial(k,2*(n-k)). A391962

The number of 1-length gaps in all possible covers of n-length line by 2-length segments. A228577