The Number

221387

Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Seven

In Base 21 Unovigesimal Is

12j0521

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

For more familiar numbers: See Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Seven in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

221384
12j0221
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Four in Base 21 Unovigesimal
221385
12j0321
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Five in Base 21 Unovigesimal
221386
12j0421
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Six in Base 21 Unovigesimal
221388
12j0621
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Eight in Base 21 Unovigesimal
221389
12j0721
Two Hundred and Twenty-One Thousand Three Hundred and Eighty-Nine in Base 21 Unovigesimal
221390
12j0821
Two Hundred and Twenty-One Thousand Three 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.

2.21387e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000i989kfekbbhe21

The reciprocal of 221387 in Base 21 Unovigesimal.

Palindrome?

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

The number 12j0521 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 twenty-one thousand three 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 twenty-one thousand three 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 twenty-one thousand three hundred and eighty-seven has the following 2 prime factors:

269
ch21
Two Hundred and Sixty-Nine in Base 21 Unovigesimal
823
1i421
Eight Hundred and Twenty-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

ch211 · 1i4211 = 12j0521

Base Conversions

The number two hundred and twenty-one thousand three hundred and eighty-seven in 35 different bases