Properties of the Number 30862

Thirty Thousand Eight Hundred Sixty-Two

Basics

Value: 30861 → 30862 → 30863

Parity: even

Prime: No

Previous Prime: 30859

Next Prime: 30869

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 13 × 1187

Divisors: 1, 2, 13, 26, 1187, 2374, 15431, 30862

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100010001110

Octal: 74216

Duodecimal: 15A3A

Hexadecimal: 788e

Square: 952463044

Square Root: 175.675837837763

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

Expansion of 1/(1 - x - ∑_k>=1 x^prime(k)). A280917

G.f. A(x) satisfies 1/x⁷¹ = ∑_n=-oo..+oo A(x)ⁿ * xⁿ * (1 - xⁿ)ⁿ⁺¹⁶. A384828

Number of (w,x,y,z) with all terms in {1,...,n} and w·x>=3·y*z. A211919

Square array T(m,n) = number of ways to draw m-1 horizontal lines [a(i),b(i)] with 0 <= a(i) < b(i) <= n such that if two lines start or end on the same coordinate, no intermediate line crosses this coordinate (see comments); m, n >= 1. A298636

[ exp(16/19)*n! ]. A30862