Properties of the Number 20038

Twenty Thousand Thirty-Eight

Basics

Value: 20037 → 20038 → 20039

Parity: even

Prime: No

Previous Prime: 20029

Next Prime: 20047

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 43 × 233

Divisors: 1, 2, 43, 86, 233, 466, 10019, 20038

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100111001000110

Octal: 47106

Duodecimal: B71A

Hexadecimal: 4e46

Square: 401521444

Square Root: 141.55564276990162

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

Numbers k such that σ(k) = σ(k+5). A15865

Expansion of 1 - x/(1 - x²/(1 - x³/(1 - x⁴/(1 - x⁵/(1 - x⁶/(1 - ... - xⁿ/(1 - ...))))))), a continued fraction. A291148

a(n) = 81·n² - 44·n + 6. A156676

Number of partitions of n in which the number of prime parts is not equal to the number of nonprime parts. A355306

Upper (1/3,1/2) midsequence of (n²) and (n³); see Comments. A390566

Number of binary strings of length n with equal numbers of 01001 and 01010 substrings. A164257

Convolution of A023532 and (F(2), F(3), F(4), ...). A23600

Numbers n such that n·2^n/2 - 1 is prime. A58775

n * (1+i)ⁿ + i is a Gaussian prime. A58782

p(11p-7) where p is prime. A98998