The Number

21078

Twenty-One Thousand and Seventy-Eight

In Base 21 Unovigesimal Is

25gf21

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

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

Nearby Numbers

Positive, nonzero integers within three units

21075
25gc21
Twenty-One Thousand and Seventy-Five in Base 21 Unovigesimal
21076
25gd21
Twenty-One Thousand and Seventy-Six in Base 21 Unovigesimal
21077
25ge21
Twenty-One Thousand and Seventy-Seven in Base 21 Unovigesimal
21079
25gg21
Twenty-One Thousand and Seventy-Nine in Base 21 Unovigesimal
21080
25gh21
Twenty-One Thousand and Eighty in Base 21 Unovigesimal
21081
25gi21
Twenty-One Thousand and Eighty-One in Base 21 Unovigesimal

Scientific Notation

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

2.1078e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00094fkfb6h64i5921

The reciprocal of 21078 in Base 21 Unovigesimal.

Palindrome?

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

The number 25gf21 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 and seventy-eight is a composite number with 12 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 and seventy-eight is a composite number with 12 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 and seventy-eight has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
1171
2dg21
One Thousand One Hundred and Seventy-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

2211 · 3212 · 2dg211 = 25gf21

Base Conversions

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