Properties of the Number 84388

Eighty-Four Thousand Three Hundred Eighty-Eight

Basics

Value: 84387 → 84388 → 84389

Parity: even

Prime: No

Previous Prime: 84377

Next Prime: 84389

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 17 ² × 73

Divisors: 1, 2, 4, 17, 34, 68, 73, 146, 289, 292

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100100110100100

Octal: 244644

Duodecimal: 40A04

Hexadecimal: 149a4

Square: 7121334544

Square Root: 290.4961273407961

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 tilings of a 5 X n rectangle using n pentominoes of shapes F, L, Y. A247443

a(n) = ∑_{1 <= i, j, k <= n} gcd(i,j,k). A344522

Number of quadrilaterals in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares). A332607

a(n) = n²*(2·n + 5). A163683

a(n) = 73·n². A174334

a(n) = least positive k such that k² - A080761(n) is a cube. A84388