The Number

55

Fifty-Five

In Base 21 Unovigesimal Is

2d21

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

For more familiar numbers: See Fifty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

52
2a21
Fifty-Two in Base 21 Unovigesimal
53
2b21
Fifty-Three in Base 21 Unovigesimal
54
2c21
Fifty-Four in Base 21 Unovigesimal
56
2e21
Fifty-Six in Base 21 Unovigesimal
57
2f21
Fifty-Seven in Base 21 Unovigesimal
58
2g21
Fifty-Eight in Base 21 Unovigesimal

Scientific Notation

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

5.5e1

Reciprocal

A number multiplied with its reciprocal is one.

0.08080808080821

The reciprocal of 55 in Base 21 Unovigesimal.

Palindrome?

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

The number 2d21 is not a palindrome.

Not A Prime Number

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

Fifty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Fifty-five is a composite number with 4 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 fifty-five has the following 2 prime factors:

5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal

Prime Factorization

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

5211 · b211 = 2d21

Base Conversions

The number fifty-five in 35 different bases