The Number

491993

Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Three

In Base 21 Unovigesimal Is

2b2d521

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

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

Nearby Numbers

Positive, nonzero integers within three units

491990
2b2d221
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety in Base 21 Unovigesimal
491991
2b2d321
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-One in Base 21 Unovigesimal
491992
2b2d421
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Two in Base 21 Unovigesimal
491994
2b2d621
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Four in Base 21 Unovigesimal
491995
2b2d721
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Five in Base 21 Unovigesimal
491996
2b2d821
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Six in Base 21 Unovigesimal

Scientific Notation

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

4.91993e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000866gh69g4ef921

The reciprocal of 491993 in Base 21 Unovigesimal.

Palindrome?

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

The number 2b2d521 is not a palindrome.

Not A Prime Number

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

Four hundred and ninety-one thousand nine hundred and ninety-three 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.

Four hundred and ninety-one thousand nine hundred and ninety-three 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 four hundred and ninety-one thousand nine hundred and ninety-three has the following 2 prime factors:

23
1221
Twenty-Three in Base 21 Unovigesimal
21391
26ad21
Twenty-One Thousand Three Hundred and Ninety-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

12211 · 26ad211 = 2b2d521

Base Conversions

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