Properties of the Number 30409

Thirty Thousand Four Hundred Nine

Basics

Value: 30408 → 30409 → 30410

Parity: odd

Prime: No

Previous Prime: 30403

Next Prime: 30427

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 47 × 647

Divisors: 1, 47, 647, 30409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111011011001001

Octal: 73311

Duodecimal: 15721

Hexadecimal: 76c9

Square: 924707281

Square Root: 174.38176510174452

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

Composite and every divisor (except 1) contains the digit 4. A62670

Expansion of (1-x+x²)/((1+x²)(1-4x+x²)). A99489

Numbers n such that n!!! - 3⁹ is prime, where n!3 = n!!! is a triple factorial number (A007661). A267029

a(n) = floor(C(4n,2n)/C(4n,n)). A24501

Irregular table read by rows: T(n,k) is the number of permutations in S_n that have exactly k occurrences of the pattern 1324. 0 <= k <= A342853(n). A342861

Length of n-th run of digit 2 in A030401. A30409