Properties of the Number 40043

Forty Thousand Forty-Three

Basics

Value: 40042 → 40043 → 40044

Parity: odd

Prime: No

Previous Prime: 40039

Next Prime: 40063

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 23 × 1741

Divisors: 1, 23, 1741, 40043

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110001101011

Octal: 116153

Duodecimal: 1B20B

Hexadecimal: 9c6b

Square: 1603441849

Square Root: 200.1074711248933

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

Write 1 + sin x = ∏_n>=1 (1 + g_n * xⁿ); a(n) = numerator(g_n). A170914

Array read by upwards antidiagonals: T(m,n) = number of set partitions into distinct parts of the multiset consisting of one copy each of x₁, x₂, ..., x_m, and two copies each of y₁, y₂, ..., y_n, for m >= 0, n >= 0. A322770

Number of rooted connected unlabeled planar graphs on n nodes. A126201

Number of 2-factors in P₄ X P_n. A3693

Row 1 of array in A322770. A322771

Number of partitions of the (n+5)-multiset {1,2,...,n,1,2,...,5} into distinct multisets. A346898

Number of partitions of the (n+6)-multiset {1,2,...,n,1,2,...,6} into distinct multisets. A346899

Number A(n,k) of partitions of the (n+k)-multiset {1,2,...,n,1,2,...,k} into distinct multisets; square array A(n,k), n>=0, k>=0, read by antidiagonals. A346517

Continued fraction for sqrt(51). A40043