Properties of the Number 81100

Eighty-One Thousand One Hundred

Basics

Value: 81099 → 81100 → 81101

Parity: even

Prime: No

Previous Prime: 81097

Next Prime: 81101

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 ² × 811

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011110011001100

Octal: 236314

Duodecimal: 3AB24

Hexadecimal: 13ccc

Square: 6577210000

Square Root: 284.7806173179628

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

n² concatenated with (n+1)². A246973

Expansion of 1/( 1 - 4 * ∑_k>=0 x^{3^k} / (1 - x^{3^k}) )^1/2. A382368

Number of 0..n arrays x(0..3) of 4 elements with nondecreasing average value and 0..n occur with instance counts within one of each other. A200943

Atomic numbers of chemical elements sorted by atomic radius. A81100