The Number

21870

Twenty-One Thousand Eight Hundred and Seventy

In Base 27 Heptavigesimal Is

130027

The numbers with a 27 subscript use Base 27 Heptavigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21867
12qo27
Twenty-One Thousand Eight Hundred and Sixty-Seven in Base 27 Heptavigesimal
21868
12qp27
Twenty-One Thousand Eight Hundred and Sixty-Eight in Base 27 Heptavigesimal
21869
12qq27
Twenty-One Thousand Eight Hundred and Sixty-Nine in Base 27 Heptavigesimal
21871
130127
Twenty-One Thousand Eight Hundred and Seventy-One in Base 27 Heptavigesimal
21872
130227
Twenty-One Thousand Eight Hundred and Seventy-Two in Base 27 Heptavigesimal
21873
130327
Twenty-One Thousand Eight Hundred and Seventy-Three in Base 27 Heptavigesimal

Scientific Notation

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

2.1870e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000o82io82io8327

The reciprocal of 21870 in Base 27 Heptavigesimal.

Palindrome?

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

The number 130027 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 eight hundred and seventy is a composite number with 32 total factors (including 1 and itself).   See primes in Base 27 Heptavigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand eight hundred and seventy is a composite number with 32 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 eight hundred and seventy has the following 3 prime factors:

2
227
Two in Base 27 Heptavigesimal
3
327
Three in Base 27 Heptavigesimal
5
527
Five in Base 27 Heptavigesimal

Prime Factorization

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

2271 · 3277 · 5271 = 130027

Base Conversions

The number twenty-one thousand eight hundred and seventy in 35 different bases