The Number

805380

Eight Hundred and Five Thousand Three Hundred and Eighty

In Base 21 Unovigesimal Is

42k5921

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

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

Nearby Numbers

Positive, nonzero integers within three units

805377
42k5621
Eight Hundred and Five Thousand Three Hundred and Seventy-Seven in Base 21 Unovigesimal
805378
42k5721
Eight Hundred and Five Thousand Three Hundred and Seventy-Eight in Base 21 Unovigesimal
805379
42k5821
Eight Hundred and Five Thousand Three Hundred and Seventy-Nine in Base 21 Unovigesimal
805381
42k5a21
Eight Hundred and Five Thousand Three Hundred and Eighty-One in Base 21 Unovigesimal
805382
42k5b21
Eight Hundred and Five Thousand Three Hundred and Eighty-Two in Base 21 Unovigesimal
805383
42k5c21
Eight Hundred and Five Thousand Three Hundred and Eighty-Three in Base 21 Unovigesimal

Scientific Notation

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

8.05380e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000051a6ffd152fb21

The reciprocal of 805380 in Base 21 Unovigesimal.

Palindrome?

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

The number 42k5921 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 eighty is a composite number with 48 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 eighty is a composite number with 48 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 eighty has the following 5 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
31
1a21
Thirty-One in Base 21 Unovigesimal
433
kd21
Four Hundred and Thirty-Three in Base 21 Unovigesimal

Prime Factorization

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

2212 · 3211 · 5211 · 1a211 · kd211 = 42k5921

Base Conversions

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