The Number

805440

Eight Hundred and Five Thousand Four Hundred and Forty

In Base 21 Unovigesimal Is

42k8621

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

For more familiar numbers: See Eight Hundred and Five Thousand Four Hundred and Forty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

805437
42k8321
Eight Hundred and Five Thousand Four Hundred and Thirty-Seven in Base 21 Unovigesimal
805438
42k8421
Eight Hundred and Five Thousand Four Hundred and Thirty-Eight in Base 21 Unovigesimal
805439
42k8521
Eight Hundred and Five Thousand Four Hundred and Thirty-Nine in Base 21 Unovigesimal
805441
42k8721
Eight Hundred and Five Thousand Four Hundred and Forty-One in Base 21 Unovigesimal
805442
42k8821
Eight Hundred and Five Thousand Four Hundred and Forty-Two in Base 21 Unovigesimal
805443
42k8921
Eight Hundred and Five Thousand Four Hundred and Forty-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.

8.05440e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000051a355h4cgd921

The reciprocal of 805440 in Base 21 Unovigesimal.

Palindrome?

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

The number 42k8621 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 four hundred and forty is a composite number with 56 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 four hundred and forty is a composite number with 56 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 four hundred and forty has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
839
1ik21
Eight Hundred and Thirty-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

2216 · 3211 · 5211 · 1ik211 = 42k8621

Base Conversions

The number eight hundred and five thousand four hundred and forty in 35 different bases