The Number

3840

Three Thousand Eight Hundred and Forty

In Base 21 Unovigesimal Is

8ei21

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

For more familiar numbers: See Three Thousand Eight Hundred and Forty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

3837
8ef21
Three Thousand Eight Hundred and Thirty-Seven in Base 21 Unovigesimal
3838
8eg21
Three Thousand Eight Hundred and Thirty-Eight in Base 21 Unovigesimal
3839
8eh21
Three Thousand Eight Hundred and Thirty-Nine in Base 21 Unovigesimal
3841
8ej21
Three Thousand Eight Hundred and Forty-One in Base 21 Unovigesimal
3842
8ek21
Three Thousand Eight Hundred and Forty-Two in Base 21 Unovigesimal
3843
8f021
Three Thousand Eight Hundred and Forty-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.

3.840e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0028dbj9k2fb5eb21

The reciprocal of 3840 in Base 21 Unovigesimal.

Palindrome?

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

The number 8ei21 is not a palindrome.

Not A Prime Number

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

Three thousand eight hundred and forty is a composite number with 36 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Three thousand eight hundred and forty is a composite number with 36 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 three thousand eight hundred and forty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three 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

2218 · 3211 · 5211 = 8ei21

Base Conversions

The number three thousand eight hundred and forty in 35 different bases