The Number

77

Seventy-Seven

In Base 21 Unovigesimal Is

3e21

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

For more familiar numbers: See Seventy-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

74
3b21
Seventy-Four in Base 21 Unovigesimal
75
3c21
Seventy-Five in Base 21 Unovigesimal
76
3d21
Seventy-Six in Base 21 Unovigesimal
78
3f21
Seventy-Eight in Base 21 Unovigesimal
79
3g21
Seventy-Nine in Base 21 Unovigesimal
80
3h21
Eighty in Base 21 Unovigesimal

Scientific Notation

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

7.7e1

Reciprocal

A number multiplied with its reciprocal is one.

0.05f5f5f5f5f5fe21

The reciprocal of 77 in Base 21 Unovigesimal.

Palindrome?

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

The number 3e21 is not a palindrome.

Not A Prime Number

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

Seventy-seven 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.

Seventy-seven 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 seventy-seven has the following 2 prime factors:

7
721
Seven 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

7211 · b211 = 3e21

Base Conversions

The number seventy-seven in 35 different bases