The Number

21109

Twenty-One Thousand One Hundred and Nine

In Base 21 Unovigesimal Is

25i421

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21106
25i121
Twenty-One Thousand One Hundred and Six in Base 21 Unovigesimal
21107
25i221
Twenty-One Thousand One Hundred and Seven in Base 21 Unovigesimal
21108
25i321
Twenty-One Thousand One Hundred and Eight in Base 21 Unovigesimal
21110
25i521
Twenty-One Thousand One Hundred and Ten in Base 21 Unovigesimal
21111
25i621
Twenty-One Thousand One Hundred and Eleven in Base 21 Unovigesimal
21112
25i721
Twenty-One Thousand One Hundred and Twelve in Base 21 Unovigesimal

Scientific Notation

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

2.1109e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00094a05693213hg21

The reciprocal of 21109 in Base 21 Unovigesimal.

Palindrome?

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

The number 25i421 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 one hundred and nine is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand one hundred and nine 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 one hundred and nine has the following 3 prime factors:

11
b21
Eleven in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
101
4h21
One Hundred and One in Base 21 Unovigesimal

Prime Factorization

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

b211 · j211 · 4h211 = 25i421

Base Conversions

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