Properties of the Number 30042

Thirty Thousand Forty-Two

Basics

Value: 30041 → 30042 → 30043

Parity: even

Prime: No

Previous Prime: 30029

Next Prime: 30047

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 1669

Divisors: 1, 2, 3, 6, 9, 18, 1669, 3338, 5007, 10014

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111010101011010

Octal: 72532

Duodecimal: 15476

Hexadecimal: 755a

Square: 902521764

Square Root: 173.32628190785147

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

Sums of three primorials > 1. A370137

Constant term of the reduction by x²->x+1 of the polynomial p(n,x) defined at Comments. A193044

a(n) = 36·n² - 8·n - 2 (n >=1). A304834

Numbers n such that 5·10ⁿ + 8·R_n - 1 is prime, where R_n = 11...1 is the repunit (A002275) of length n. A103023

Generating primitive Pythagorean triangles by using (n, n+1) gives perimeters for each n. This sequence lists the sum of these perimeters for each n triangles. A193068

Irregular triangular array T(n,k) of consecutive composites. A226085

Unreduced numerator of volume of best symplectic packing of n balls in 4-dimensional ball. A30042