Properties of the Number 28222

Twenty-Eight Thousand Two Hundred Twenty-Two

Basics

Value: 28221 → 28222 → 28223

Parity: even

Prime: No

Previous Prime: 28219

Next Prime: 28229

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 103 × 137

Divisors: 1, 2, 103, 137, 206, 274, 14111, 28222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111000111110

Octal: 67076

Duodecimal: 143BA

Hexadecimal: 6e3e

Square: 796481284

Square Root: 167.99404751359495

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

Irregular triangle: T(n,k) gives the number of k-polysticks on edges of the n-cube up to isometries of the n-cube, with 0 <= k <= A001787(n). A333333

The number of edges formed by straight line segments mutually connecting all vertices of a semicircular polygon defined in A333642. A330911

Pascal-like triangle, where each entry is the sum of the four entries above it starting with 1 at the top. A356692

Numbers with digits 2 and 8 only. A284922

Numbers k such that 3^σ(k) - k is a prime. A367460

a(n) = (n⁵ - n⁴ - n³ + n² - 1)*a(n-5) for n > 4, otherwise n!. A123150

Numbers k such that Euler φ(k) / Carmichael λ(k) = 34. A66698

Row sums of triangle defined in A113821. A160969

Least k > a(n-1) such that k³ has no digit in common with a(n-1) and a(n+1), a(0)=0. A294662

Lesser of 2 successive sphenic numbers (k, k+4) sandwiching 3 consecutive nonsquarefree numbers. A363830