Properties of the Number 4821

Four Thousand Eight Hundred Twenty-One

Basics

Value: 4820 → 4821 → 4822

Parity: odd

Prime: No

Previous Prime: 4817

Next Prime: 4831

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 1607

Divisors: 1, 3, 1607, 4821

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011010101

Octal: 11325

Duodecimal: 2959

Hexadecimal: 12d5

Square: 23242041

Square Root: 69.4334213473598

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

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 20. A50969

Number of partitions of n such that every part divides the largest part; a(0) = 1. A130689

Number of integer partitions of n having a permutation with all equal run-lengths. A383013

a(1) = 4; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A46254

a(n) = (n+1)*a(n-1) + (n+2)*a(n-2) + a(n-3); a(1)=0, a(2)=3, a(3)=13. A904

Cubes (n·n * n) in carryless arithmetic mod 10. A169885

The 300-degree spoke (or ray) of a hexagonal spiral of Ulam. A244804

Number of n X 2 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero. A297809

Table of coefficients in functions that satisfy W_n(x) = W_n-1(x)^W_n(x), with W₀(x) = exp(x), as read by antidiagonals. A274391

Number of edges in an equilateral triangle when n internal equilateral triangles are drawn between the 3n points that divide each side into n+1 equal parts. A357008