Properties of the Number 84210

Eighty-Four Thousand Two Hundred Ten

Basics

Value: 84209 → 84210 → 84211

Parity: even

Prime: No

Previous Prime: 84199

Next Prime: 84211

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 7 × 401

Divisors: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100100011110010

Octal: 244362

Duodecimal: 40896

Hexadecimal: 148f2

Square: 7091324100

Square Root: 290.1895931972751

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

Numbers k having exactly 5 distinct prime factors, the largest of which is greater than or equal to sqrt(k) (i.e., sqrt(k)-rough numbers with exactly 5 distinct prime factors). A115959

a(n) = n*(n+1)*(n²+1)/2. A71237

a(n) = a(n-1) + a(floor(n/2))² for n > 0, a(0) = 1. A67868

G.f. A(x) defined by: A(x)¹⁰ consists entirely of integer coefficients between 1 and 10 (A083950); A(x) is the unique power series solution with A(0)=1. A84210