The Number

213987

Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Seven

In Base 21 Unovigesimal Is

1224i21

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

For more familiar numbers: See Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

213984
1224f21
Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Four in Base 21 Unovigesimal
213985
1224g21
Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Five in Base 21 Unovigesimal
213986
1224h21
Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Six in Base 21 Unovigesimal
213988
1224j21
Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
213989
1224k21
Two Hundred and Thirteen Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal
213990
1225021
Two Hundred and Thirteen Thousand Nine Hundred and Ninety in Base 21 Unovigesimal

Scientific Notation

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

2.13987e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000j1gh1a4e006721

The reciprocal of 213987 in Base 21 Unovigesimal.

Palindrome?

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

The number 1224i21 is not a palindrome.

Not A Prime Number

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

Two hundred and thirteen thousand nine hundred and eighty-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and thirteen thousand nine hundred and eighty-seven is a composite number with 4 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 two hundred and thirteen thousand nine hundred and eighty-seven has the following 2 prime factors:

3
321
Three in Base 21 Unovigesimal
71329
7efd21
Seventy-One Thousand Three Hundred and Twenty-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

3211 · 7efd211 = 1224i21

Base Conversions

The number two hundred and thirteen thousand nine hundred and eighty-seven in 35 different bases