Properties of the Number 30428

Thirty Thousand Four Hundred Twenty-Eight

Basics

Value: 30427 → 30428 → 30429

Parity: even

Prime: No

Previous Prime: 30427

Next Prime: 30431

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 7607

Divisors: 1, 2, 4, 7607, 15214, 30428

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011011011100

Octal: 73334

Duodecimal: 15738

Hexadecimal: 76dc

Square: 925863184

Square Root: 174.4362347678945

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

G.f. satisfies A(x) = 1 + x·A(x·A(x)). A87949

Smallest number that requires n iterations of the bi-unitary totient function (A116550) to reach 1. A5424

Number of compositions of n into parts with distinct multiplicities and with exactly eight parts. A321778

a(n) = 0! * 1! * 2! * ... * n! - 1. A30428