Properties of the Number 30872

Thirty Thousand Eight Hundred Seventy-Two

Basics

Value: 30871 → 30872 → 30873

Parity: even

Prime: No

Previous Prime: 30871

Next Prime: 30881

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 17 × 227

Divisors: 1, 2, 4, 8, 17, 34, 68, 136, 227, 454

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100010011000

Octal: 74230

Duodecimal: 15A48

Hexadecimal: 7898

Square: 953080384

Square Root: 175.7042970447792

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

The number of permutations p of {1,...,n} such that |p(i)-p(i+1)| is in {1,2,3} for all i from 1 to n-1. A174700

One of the two successive approximations up to 3ⁿ for the 3-adic integer sqrt(-1/2). A309477

Number of n-step spiral self-avoiding walks on hexagonal lattice, where at each step one may continue in same direction or make turn of 2*π/3 counterclockwise. A511

Number of positive integers <= 2ⁿ of form x² + 18 y². A54231

a(n) = sum of squares of numbers < 2ⁿ having exactly 4 ones in their binary representation. A110204

[ exp(6/19)*n! ]. A30872