Properties of the Number 1943

One Thousand Nine Hundred Forty-Three

Basics

Value: 1942 → 1943 → 1944

Parity: odd

Prime: No

Previous Prime: 1933

Next Prime: 1949

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

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

a(n) = n² + 7. A117619

Number of n-digit numbers in a cycle (including fixed points) under the base-8 Kaprekar map A165090. A165104

Permutation of natural numbers: a(0)=0, a(1)=1, a(2n)=A005228(1+(a(n))), a(2n+1)=A030124(a(n)). A232752

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically. A208013

Positive integers (not multiples of 10) whose constant congruence speed is greater than the sum of the constant congruence speeds of all their prime factors counted with multiplicity. A389979