The Number

491997

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

In Base 21 Unovigesimal Is

2b2d921

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-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

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
491998
2b2da21
Four Hundred and Ninety-One Thousand Nine Hundred and Ninety-Eight 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

Scientific Notation

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

4.91997e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000866g43h9k95d21

The reciprocal of 491997 in Base 21 Unovigesimal.

Palindrome?

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

The number 2b2d921 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-seven 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-seven 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-seven has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
17
h21
Seventeen in Base 21 Unovigesimal
877
1kg21
Eight Hundred and Seventy-Seven in Base 21 Unovigesimal

Prime Factorization

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

3211 · b211 · h211 · 1kg211 = 2b2d921

Base Conversions

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