The Number

81408

Eighty-One Thousand Four Hundred and Eight

In Base 20 Vigesimal Is

a3a820

The numbers with a 20 subscript use Base 20 Vigesimal notation.

For more familiar numbers: See Eighty-One Thousand Four Hundred and Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

81405
a3a520
Eighty-One Thousand Four Hundred and Five in Base 20 Vigesimal
81406
a3a620
Eighty-One Thousand Four Hundred and Six in Base 20 Vigesimal
81407
a3a720
Eighty-One Thousand Four Hundred and Seven in Base 20 Vigesimal
81409
a3a920
Eighty-One Thousand Four Hundred and Nine in Base 20 Vigesimal
81410
a3aa20
Eighty-One Thousand Four Hundred and Ten in Base 20 Vigesimal
81411
a3ab20
Eighty-One Thousand Four Hundred and Eleven in Base 20 Vigesimal

Scientific Notation

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

8.1408e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j63583a8g20420

The reciprocal of 81408 in Base 20 Vigesimal.

Palindrome?

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

The number a3a820 is not a palindrome.

Not A Prime Number

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

Eighty-one thousand four hundred and eight is a composite number with 40 total factors (including 1 and itself).   See primes in Base 20 Vigesimal

A Composite

Composites have more than just these two factors.

Eighty-one thousand four hundred and eight is a composite number with 40 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-one thousand four hundred and eight has the following 3 prime factors:

2
220
Two in Base 20 Vigesimal
3
320
Three in Base 20 Vigesimal
53
2d20
Fifty-Three in Base 20 Vigesimal

Prime Factorization

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

2209 · 3201 · 2d201 = a3a820

Base Conversions

The number eighty-one thousand four hundred and eight in 35 different bases