Properties of the Number 30942

Thirty Thousand Nine Hundred Forty-Two

Basics

Value: 30941 → 30942 → 30943

Parity: even

Prime: No

Previous Prime: 30941

Next Prime: 30949

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 191

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011011110

Octal: 74336

Duodecimal: 15AA6

Hexadecimal: 78de

Square: 957407364

Square Root: 175.90338257122858

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

Number of cyclic subgroups of the group (C_n)⁵, where C_n is the cyclic group of order n. A344219

a(n) = A047848(10, n). A196792

Numbers whose set of base-13 digits is {1,2}. A32933

Positive square-root of terms of the self-convolution of A087150. A87151

Numbers n with property that n² is a sum of some 120 successive primes. A166262

Numbers k such that the sum of the divisors of k and the sum of the distinct prime divisors of k are both a square. A194196

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood. A270893

Primitive practical numbers of the form 2·3ⁱ * prime(k). A367481

G.f. A(x) satisfies: A(x)² = A( x²/(1-4·x) ), with A(0) = 0. A264224

G.f. satisfies: A(x)² = A( x²/(1-6·x)² ). A264232