Properties of the Number 30506

Thirty Thousand Five Hundred Six

Basics

Value: 30505 → 30506 → 30507

Parity: even

Prime: No

Previous Prime: 30497

Next Prime: 30509

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 7 × 2179

Divisors: 1, 2, 7, 14, 2179, 4358, 15253, 30506

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111011100101010

Octal: 73452

Duodecimal: 157A2

Hexadecimal: 772a

Square: 930616036

Square Root: 174.6596690710251

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

A self-"read and extend" sequence built following the rules visible in the Comments section (a kind of Collatz-by-digits sequence). A316764

Floor( e * (3/2)ⁿ ). A81225

p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - S² - S³ - S⁴ - S⁵. A291235

Number of maximal independent sets in the 4 X n king graph. A332349

a(n) is the largest number t such that there exist numbers i,j,k such that, for all m <= t, there exist integers x,y,z with x·i + y·j + z·k = m and |x|+|y|+|z| <= n. A383579

Expansion of (1+x)*(1-6·x-25·x²)/((1+2x)(1-4x)(1+8x)(1-16x)). A122911

Number of matchings in the n-helm graph. A286814

Graham-Sloane-type lower bound on the size of a ternary (n,3,6) constant-weight code. A30506