Properties of the Number 84284

Eighty-Four Thousand Two Hundred Eighty-Four

Basics

Value: 84283 → 84284 → 84285

Parity: even

Prime: No

Previous Prime: 84263

Next Prime: 84299

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 19 × 1109

Divisors: 1, 2, 4, 19, 38, 76, 1109, 2218, 4436, 21071

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100100111100

Octal: 244474

Duodecimal: 40938

Hexadecimal: 1493c

Square: 7103792656

Square Root: 290.3170680480223

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

Number of polygons formed when every pair of vertices of a row of n adjacent congruent rectangles are joined by an infinite line. A344993

a(n) = Jacobi P-Polynomial P_n(α=1, β=1, x=sqrt(2)) multiplied by 2^{n/2+floor(n/2}) and divided by n+1. A25176

Number of connected labeled 4-colorable (i.e., chromatic number <= 4) graphs on n nodes. A84284

a(n+1) = a(n) + largest digit not in a(n), starting with a(1) = 1. A260263

a(n+1) = a(n) + largest digit not in a(n), starting with a(0) = 0. A260264

Triangle read by rows: T(n,k) is the number of chains of length k in the poset of all arithmetic progressions contained in {1,...,n} of length in the range [1..n-1], ordered by inclusion. A347580