The Number

121991

One Hundred and Twenty-One Thousand Nine Hundred and Ninety-One

In Base 4 Quaternary Is

1313020134

The numbers with a 4 subscript use Base 4 Quaternary notation.

For more familiar numbers: See One Hundred and Twenty-One Thousand Nine Hundred and Ninety-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

121988
1313020104
One Hundred and Twenty-One Thousand Nine Hundred and Eighty-Eight in Base 4 Quaternary
121989
1313020114
One Hundred and Twenty-One Thousand Nine Hundred and Eighty-Nine in Base 4 Quaternary
121990
1313020124
One Hundred and Twenty-One Thousand Nine Hundred and Ninety in Base 4 Quaternary
121992
1313020204
One Hundred and Twenty-One Thousand Nine Hundred and Ninety-Two in Base 4 Quaternary
121993
1313020214
One Hundred and Twenty-One Thousand Nine Hundred and Ninety-Three in Base 4 Quaternary
121994
1313020224
One Hundred and Twenty-One Thousand Nine Hundred and Ninety-Four in Base 4 Quaternary

Scientific Notation

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

1.21991e5

Reciprocal

A number multiplied with its reciprocal is one.

0.000000002021201303331022001010214

The reciprocal of 121991 in Base 4 Quaternary.

Palindrome?

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

The number 1313020134 is not a palindrome.

Not A Prime Number

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

One hundred and twenty-one thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 4 Quaternary

A Composite

Composites have more than just these two factors.

One hundred and twenty-one thousand nine hundred and ninety-one 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 one hundred and twenty-one thousand nine hundred and ninety-one has the following 2 prime factors:

43
2234
Forty-Three in Base 4 Quaternary
2837
2301114
Two Thousand Eight Hundred and Thirty-Seven in Base 4 Quaternary

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

22341 · 23011141 = 1313020134

Base Conversions

The number one hundred and twenty-one thousand nine hundred and ninety-one in 35 different bases