Properties of the Number -191999

One Hundred Ninety-One Thousand Nine Hundred Ninety-Nine

Basics

Value: -192000 → -191999 → -191998

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 38

Digital Root: 2

Palindrome: No

Factorization: 191999

Divisors: 1, 191999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101110110111111111

Octal: -566777

Duodecimal: -9313B

Hexadecimal: -2edff

Square: 36863616001

Square Root: 438.17690491398565

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

Primes that contain digits 1 and 9 only. A20457

If k is a number with exactly two distinct decimal digits, say a and b, neither of which is 0 (i.e., a member of A101594), define the self-complement of k, SC(k), to be the number obtained by replacing a with b and vice versa. E.g. SC(232233) = 323322. Sequence contains primes p such that SC(p) is also a prime. A83983

Sequence of primes p(n) such that 2·p(n)+3, 2·p(n+1)+3, 2·p(n+2)+3 are consecutive primes, where p(i) denotes the i-th prime. A88119

Number of proper divisors of n!. A153823

Primes of the form 3n³-1. A200846

Prime numbers consisting of only odd digits such that there is only one permutation of its digits that produces a prime number. A225421

a(n) = 3·n³ - 1. A345701