The Number

87945

Eighty-Seven Thousand Nine Hundred and Forty-Five

In Base 21 Unovigesimal Is

9a8i21

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

For more familiar numbers: See Eighty-Seven Thousand Nine Hundred and Forty-Five in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

87942
9a8f21
Eighty-Seven Thousand Nine Hundred and Forty-Two in Base 21 Unovigesimal
87943
9a8g21
Eighty-Seven Thousand Nine Hundred and Forty-Three in Base 21 Unovigesimal
87944
9a8h21
Eighty-Seven Thousand Nine Hundred and Forty-Four in Base 21 Unovigesimal
87946
9a8j21
Eighty-Seven Thousand Nine Hundred and Forty-Six in Base 21 Unovigesimal
87947
9a8k21
Eighty-Seven Thousand Nine Hundred and Forty-Seven in Base 21 Unovigesimal
87948
9a9021
Eighty-Seven Thousand Nine Hundred and Forty-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.

8.7945e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002494f073eac6721

The reciprocal of 87945 in Base 21 Unovigesimal.

Palindrome?

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

The number 9a8i21 is not a palindrome.

Not A Prime Number

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

Eighty-seven thousand nine hundred and forty-five is a composite number with 32 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eighty-seven thousand nine hundred and forty-five is a composite number with 32 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-seven thousand nine hundred and forty-five has the following 5 prime factors:

3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
41
1k21
Forty-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

3211 · 5211 · b211 · d211 · 1k211 = 9a8i21

Base Conversions

The number eighty-seven thousand nine hundred and forty-five in 35 different bases