The Number

28

Twenty-Eight

In Base 22 Duovigesimal Is

1622

The numbers with a 22 subscript use Base 22 Duovigesimal notation.

For more familiar numbers: See Twenty-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

25
1322
Twenty-Five in Base 22 Duovigesimal
26
1422
Twenty-Six in Base 22 Duovigesimal
27
1522
Twenty-Seven in Base 22 Duovigesimal
29
1722
Twenty-Nine in Base 22 Duovigesimal
30
1822
Thirty in Base 22 Duovigesimal
31
1922
Thirty-One in Base 22 Duovigesimal

Scientific Notation

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

2.8e1

Reciprocal

A number multiplied with its reciprocal is one.

0.0h6666666666622

The reciprocal of 28 in Base 22 Duovigesimal.

Palindrome?

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

The number 1622 is not a palindrome.

Not A Prime Number

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

Twenty-eight is a composite number with 6 total factors (including 1 and itself).   See primes in Base 22 Duovigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight is a composite number with 6 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-eight has the following 2 prime factors:

2
222
Two in Base 22 Duovigesimal
7
722
Seven in Base 22 Duovigesimal

Prime Factorization

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

2222 · 7221 = 1622

Base Conversions

The number twenty-eight in 35 different bases