Properties of the Number -1943

Nine Hundred Forty-Three

Basics

Value: -1944 → -1943 → -1942

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 29 × 67

Divisors: 1, 29, 67, 1943

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11110010111

Octal: -3627

Duodecimal: -115B

Hexadecimal: -797

Square: 3775249

Square Root: 44.07947368106838

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

Values of n such that L(17) and N(17) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227520

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 157", based on the 5-celled von Neumann neighborhood. A270332

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 283", based on the 5-celled von Neumann neighborhood. A271120

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 345", based on the 5-celled von Neumann neighborhood. A271296

a(n) = 105 - 2ⁿ. A286812

Number of ways to split a strict integer partition of n into consecutive subsequences with equal sums. A318683

a(n) = 6·n² - 1. A140811

Number of disconnected 2-regular simple graphs on n vertices with girth at least 6. A185226

a(1) = 4; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74341

T(n,k) = number of arrays of the median of three adjacent elements of some length n+2 0..k array. A228740