The Number

21290

Twenty-One Thousand Two Hundred and Ninety

In Base 18 Octodecimal Is

3bce18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Twenty-One Thousand Two Hundred and Ninety in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

21287
3bcb18
Twenty-One Thousand Two Hundred and Eighty-Seven in Base 18 Octodecimal
21288
3bcc18
Twenty-One Thousand Two Hundred and Eighty-Eight in Base 18 Octodecimal
21289
3bcd18
Twenty-One Thousand Two Hundred and Eighty-Nine in Base 18 Octodecimal
21291
3bcf18
Twenty-One Thousand Two Hundred and Ninety-One in Base 18 Octodecimal
21292
3bcg18
Twenty-One Thousand Two Hundred and Ninety-Two in Base 18 Octodecimal
21293
3bch18
Twenty-One Thousand Two Hundred and Ninety-Three in Base 18 Octodecimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.1290e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004gda40gc422ac918

The reciprocal of 21290 in Base 18 Octodecimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 3bce18 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty-one thousand two hundred and ninety is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and ninety is a composite number with 8 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number twenty-one thousand two hundred and ninety has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
2129
6a518
Two Thousand One Hundred and Twenty-Nine in Base 18 Octodecimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2181 · 5181 · 6a5181 = 3bce18

Base Conversions

The number twenty-one thousand two hundred and ninety in 35 different bases