Properties of the Number 42043

Forty-Two Thousand Forty-Three

Basics

Value: 42042 → 42043 → 42044

Parity: odd

Prime: Yes

Previous Prime: 42023

Next Prime: 42061

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 42043

Divisors: 1, 42043

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010010000111011

Octal: 122073

Duodecimal: 203B7

Hexadecimal: a43b

Square: 1767613849

Square Root: 205.04389773899638

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

Primes prime(k) for which A049076(k) = 5. A49081

Primes for which A049076 >= 4. A49090

Primes for which A049076(p) >= 5. A49203

a(n) = ∑_j=1..n j·prime(j). A14285

Prime recurrence: a(n+1) = a(n)-th prime, with a(1) = 10. A57456

Numerator of the barycenter of first n primes defined as a(n) = numerator(∑_i=1..n (i·prime(i)) / ∑_i=1..n prime(i)). A306834

Matula-Goebel numbers of rooted trees whose number of nodes is one more than their node-height. A358731

Primes of form n.0.n+1, where '.' represents concatenation. Or, primes of form 10^k+1*n + n + 1, where k is the number of digits in n. A96525

Primes p such that the multiplicative order of 2 modulo p is (p-1)/11. A152311

Primes of the form 2n² - 7. A201714