Properties of the Number 4043

Four Thousand Forty-Three

Basics

Value: 4042 → 4043 → 4044

Parity: odd

Prime: No

Previous Prime: 4027

Next Prime: 4049

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 13 × 311

Divisors: 1, 13, 311, 4043

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111111001011

Octal: 7713

Duodecimal: 240B

Hexadecimal: fcb

Square: 16345849

Square Root: 63.58458932791813

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

Partial sums of A299266. A299267

G.f. A(x) satisfies A(A(A(..(A(x))..))) = B(x) (13th self-COMPOSE of A) such that the coefficients of B(x) consist only of numbers {1,2,3,..,13}, with B(0) = 0. A112127

a(n) = solution to the postage stamp problem with 3 denominations and n stamps. A1208

Indices of prime NSW numbers A088165. A113501

a(n) = ceiling(∑_i=1..n-1 a(i)/4) for n >= 2 starting with a(1) = 1. A120160

Apply partial sum operator thrice to Fibonacci numbers. A14162

a(n) = 2·n² + 8·n + 1. A161532

O.g.f.: ∑_n>=0 xⁿ / ∏_k=1..n (1 - n·k*x). A229233

The number of odd numbers that require n Collatz (3x+1) iterations to reach 1. A176866

Numbers n such that (n⁸³-1)/(n-1) is prime. A217087