Properties of the Number 30170

Thirty Thousand One Hundred Seventy

Basics

Value: 30169 → 30170 → 30171

Parity: even

Prime: No

Previous Prime: 30169

Next Prime: 30181

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 × 7 × 431

Divisors: 1, 2, 5, 7, 10, 14, 35, 70, 431, 862

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111010111011010

Octal: 72732

Duodecimal: 15562

Hexadecimal: 75da

Square: 910228900

Square Root: 173.69513522260777

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

Numbers k such that σ(k) = σ(k+4). A15863

Rounded volume of a regular octahedron with edge length n. A71400

Nearest integer to modified Bessel function K_n(5). A249

Numerator of Euler(n, 5/19). A156705

Number of nondecreasing arrangements of 5 nonzero numbers in -(n+3)..(n+3) with sum zero. A188335

Number of nX3 0..1 arrays with row sums equal and column sums unequal to adjacent columns. A202737

Number of length 3 0..n arrays with each partial sum starting from the beginning no more than sqrt(2) standard deviations from its mean. A244906

Numbers k such that (268·10^k - 1)/3 is prime. A293531

Triangle T(n,k) read by rows with T(n,0) = (2·n)! / (2ⁿ * n!) for n >= 0 and T(n,k) = (∑_i=k..n binomial(i-1,k-1) * 2ⁱ * i! / (2·i)!) * (2·n)! / (2ⁿ * n!) for 0 < k <= n. A350557

T(n,k)=Number of nXk 0..1 arrays with row sums equal and column sums unequal to adjacent columns. A202742