The Number

81490

Eighty-One Thousand Four Hundred and Ninety

In Base 20 Vigesimal Is

a3ea20

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

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

Nearby Numbers

Positive, nonzero integers within three units

81487
a3e720
Eighty-One Thousand Four Hundred and Eighty-Seven in Base 20 Vigesimal
81488
a3e820
Eighty-One Thousand Four Hundred and Eighty-Eight in Base 20 Vigesimal
81489
a3e920
Eighty-One Thousand Four Hundred and Eighty-Nine in Base 20 Vigesimal
81491
a3eb20
Eighty-One Thousand Four Hundred and Ninety-One in Base 20 Vigesimal
81492
a3ec20
Eighty-One Thousand Four Hundred and Ninety-Two in Base 20 Vigesimal
81493
a3ed20
Eighty-One Thousand Four Hundred and Ninety-Three in Base 20 Vigesimal

Scientific Notation

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

8.1490e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0001j578ja2da17j20

The reciprocal of 81490 in Base 20 Vigesimal.

Palindrome?

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

The number a3ea20 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 ninety is a composite number with 16 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 ninety is a composite number with 16 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 ninety has the following 4 prime factors:

2
220
Two in Base 20 Vigesimal
5
520
Five in Base 20 Vigesimal
29
1920
Twenty-Nine in Base 20 Vigesimal
281
e120
Two Hundred and Eighty-One in Base 20 Vigesimal

Prime Factorization

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

2201 · 5201 · 19201 · e1201 = a3ea20

Base Conversions

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