The Number

805309

Eight Hundred and Five Thousand Three Hundred and Nine

In Base 21 Unovigesimal Is

42k2121

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

For more familiar numbers: See Eight Hundred and Five Thousand Three Hundred and Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

805306
42k1j21
Eight Hundred and Five Thousand Three Hundred and Six in Base 21 Unovigesimal
805307
42k1k21
Eight Hundred and Five Thousand Three Hundred and Seven in Base 21 Unovigesimal
805308
42k2021
Eight Hundred and Five Thousand Three Hundred and Eight in Base 21 Unovigesimal
805310
42k2221
Eight Hundred and Five Thousand Three Hundred and Ten in Base 21 Unovigesimal
805311
42k2321
Eight Hundred and Five Thousand Three Hundred and Eleven in Base 21 Unovigesimal
805312
42k2421
Eight Hundred and Five Thousand Three Hundred and Twelve in Base 21 Unovigesimal

Scientific Notation

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

8.05309e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000051aaiebj7kfg21

The reciprocal of 805309 in Base 21 Unovigesimal.

Palindrome?

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

The number 42k2121 is not a palindrome.

Not A Prime Number

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

Eight hundred and five thousand three hundred and nine is a composite number with 2 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eight hundred and five thousand three hundred and nine is a composite number with 2 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 eight hundred and five thousand three hundred and nine has the following 1 prime factor:

805309
42k2121
Eight Hundred and Five Thousand Three Hundred and 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

42k21211 = 42k2121

Base Conversions

The number eight hundred and five thousand three hundred and nine in 35 different bases