The Number

13820

Thirteen Thousand Eight Hundred and Twenty

In Base 21 Unovigesimal Is

1a7221

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

For more familiar numbers: See Thirteen Thousand Eight Hundred and Twenty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

13817
1a6k21
Thirteen Thousand Eight Hundred and Seventeen in Base 21 Unovigesimal
13818
1a7021
Thirteen Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
13819
1a7121
Thirteen Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
13821
1a7321
Thirteen Thousand Eight Hundred and Twenty-One in Base 21 Unovigesimal
13822
1a7421
Thirteen Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
13823
1a7521
Thirteen Thousand Eight 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.

1.3820e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000e1ajgac2e41b21

The reciprocal of 13820 in Base 21 Unovigesimal.

Palindrome?

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

The number 1a7221 is not a palindrome.

Not A Prime Number

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

Thirteen thousand eight hundred and twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Thirteen thousand eight hundred and twenty is a composite number with 12 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 thirteen thousand eight hundred and twenty has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
691
1bj21
Six Hundred and Ninety-One 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 · 5211 · 1bj211 = 1a7221

Base Conversions

The number thirteen thousand eight hundred and twenty in 35 different bases