Properties of the Number -1888

Eight Hundred Eighty-Eight

Basics

Value: -1889 → -1888 → -1887

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 59

Divisors: 1, 2, 4, 8, 16, 32, 59, 118, 236, 472

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11101100000

Octal: -3540

Duodecimal: -1114

Hexadecimal: -760

Square: 3564544

Square Root: 43.45112196480086

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

Expansion of g.f. -x/(1+x-x³). A104769

Expansion of 1/(1+x+2·x²+x³). A77979

Expansion of (1-x)/(1-x+x³). A78013

G.f. satisfies A(A(A(A(x)))) = F(x), where F(x) is the g.f. for A002697(n) = n·4^n-1. A372492

Primitive abundant numbers (abundant numbers all of whose proper divisors are deficient numbers). A71395

Primitive nondeficient numbers. A6039

Numbers with an even number of prime factors (counted with multiplicity) that cannot be factored into distinct semiprimes. A320892

Numbers k whose abundance is 4: σ(k) - 2·k = 4. A88832

Integers of the form m*(m + 6)/7. A274978

Abundant numbers n for which the abundance d = σ(n) - 2·n is a proper divisor, that is, 0 < d < n and d | n. A181595