Properties of the Number -83921

Eighty-Three Thousand Nine Hundred Twenty-One

Basics

Value: -83922 → -83921 → -83920

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 83921

Divisors: 1, 83921

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10100011111010001

Octal: -243721

Duodecimal: -40695

Hexadecimal: -147d1

Square: 7042734241

Square Root: 289.691214916849

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) is the smallest prime p such that there is a multiplicative subgroup H of Z/pZ, of odd order and of index 2n, such that for any two cosets H1 and H2 of H, H1 + H2 contains all of (Z/pZ)\0, except that H+H contains all of (Z/pZ)\0 except -H. If no such prime exists, a(n) = 0. A294615

Prime(k), where k divides ∑_i=1..k prime(i)¹⁵. A232848

Number of permutations in S_2·n+3 containing the pattern 2143...(2n)(2n-1). A271648

Numbers k such that (85·10^k - 1)/3 is prime. A289942