Properties of the Number 84100

Eighty-Four Thousand One Hundred

Basics

Value: 84099 → 84100 → 84101

Parity: even

Prime: No

Previous Prime: 84089

Next Prime: 84121

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 ² × 29 ²

Divisors: 1, 2, 4, 5, 10, 20, 25, 29, 50, 58

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10100100010000100

Octal: 244204

Duodecimal: 40804

Hexadecimal: 14884

Square: 7072810000

Square Root: 290

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 n that are the hypotenuse of exactly 12 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 12 ways. A97226

Main diagonal of A082043: a(n) = n⁴ + 2·n² + 1. A82044

Numbers that are the squares of the product of three distinct primes. A162143

a(n) = (11·n + 4)². A17438

T(n,k)=Number of nXk 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value. A267788

Palindromic squares in base 12. A29738

Squares with initial digit '8'. A45792

Squares with digits in nonincreasing order. A28822

a(n) = sigma₂(n)². A356533

a(n) = (10·n)². A17270