The Number

80

Eighty

In Base 21 Unovigesimal Is

3h21

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

For more familiar numbers: See Eighty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

77
3e21
Seventy-Seven in Base 21 Unovigesimal
78
3f21
Seventy-Eight in Base 21 Unovigesimal
79
3g21
Seventy-Nine in Base 21 Unovigesimal
81
3i21
Eighty-One in Base 21 Unovigesimal
82
3j21
Eighty-Two in Base 21 Unovigesimal
83
3k21
Eighty-Three in Base 21 Unovigesimal

Scientific Notation

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

8e1

Reciprocal

A number multiplied with its reciprocal is one.

0.05ag05ag05ag0721

The reciprocal of 80 in Base 21 Unovigesimal.

Palindrome?

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

The number 3h21 is not a palindrome.

Not A Prime Number

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

Eighty is a composite number with 10 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eighty is a composite number with 10 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 eighty has the following 2 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal

Prime Factorization

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

2214 · 5211 = 3h21

Base Conversions

The number eighty in 35 different bases