The Number

491998

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

In Base 21 Unovigesimal Is

2b2da21

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-Eight in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

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
491997
2b2d921
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Seven in Base 21 Unovigesimal
491999
2b2db21
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Nine in Base 21 Unovigesimal
492000
2b2dc21
Four Hundred and Ninety-Two Thousand in Base 21 Unovigesimal
492001
2b2dd21
Four Hundred and Ninety-Two Thousand and One in Base 21 Unovigesimal

Scientific Notation

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

4.91998e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000866g0ij8f27521

The reciprocal of 491998 in Base 21 Unovigesimal.

Palindrome?

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

The number 2b2da21 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-eight is a composite number with 16 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-eight 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 four hundred and ninety-one thousand nine hundred and ninety-eight has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
127
6121
One Hundred and Twenty-Seven in Base 21 Unovigesimal
149
7221
One Hundred and Forty-Nine in Base 21 Unovigesimal

Prime Factorization

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

2211 · d211 · 61211 · 72211 = 2b2da21

Base Conversions

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