The Number

18420

Eightteen Thousand Four Hundred and Twenty

In Base 21 Unovigesimal Is

1kg321

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

For more familiar numbers: See Eightteen Thousand Four Hundred and Twenty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

18417
1kg021
Eightteen Thousand Four Hundred and Seventeen in Base 21 Unovigesimal
18418
1kg121
Eightteen Thousand Four Hundred and Eightteen in Base 21 Unovigesimal
18419
1kg221
Eightteen Thousand Four Hundred and Nineteen in Base 21 Unovigesimal
18421
1kg421
Eightteen Thousand Four Hundred and Twenty-One in Base 21 Unovigesimal
18422
1kg521
Eightteen Thousand Four Hundred and Twenty-Two in Base 21 Unovigesimal
18423
1kg621
Eightteen Thousand Four Hundred and Twenty-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.

1.8420e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000abf2k5ef75g4a21

The reciprocal of 18420 in Base 21 Unovigesimal.

Palindrome?

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

The number 1kg321 is not a palindrome.

Not A Prime Number

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

Eightteen thousand four hundred and twenty is a composite number with 24 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Eightteen thousand four hundred and twenty is a composite number with 24 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 eightteen thousand four hundred and twenty 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
307
ed21
Three Hundred and 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

2212 · 3211 · 5211 · ed211 = 1kg321

Base Conversions

The number eightteen thousand four hundred and twenty in 35 different bases