Properties of the Number 30885

Thirty Thousand Eight Hundred Eighty-Five

Basics

Value: 30884 → 30885 → 30886

Parity: odd

Prime: No

Previous Prime: 30881

Next Prime: 30893

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 29 × 71

Divisors: 1, 3, 5, 15, 29, 71, 87, 145, 213, 355

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100010100101

Octal: 74245

Duodecimal: 15A59

Hexadecimal: 78a5

Square: 953883225

Square Root: 175.7412871239994

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

Triangle read by rows: T(n,k) = t(n-k, k); t(n,m) = f(m)*t(n-1,m) + f(n)*t(n,m-1), where f(x) = x + 5. A257607

Number of n edge connected achiral planar maps with an external face in which all internal faces are triangles. A378342

Numbers k such that k*(k+1)-1 and k*(k+1)+1 are twin primes and k*(k+3)-1 and k*(k+3)+1 are also twin primes. A138303

Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero. A208598

Number of partitions of n+7 with largest inscribed rectangle having area <= n. A218628

Minimal index of order n Stanley's antimagic square composed of Smith numbers. A225133

[ exp(15/17)*n! ]. A30885