The Number

121818

One Hundred and Twenty-One Thousand Eight Hundred and Eightteen

In Base 21 Unovigesimal Is

d34i21

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

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

Nearby Numbers

Positive, nonzero integers within three units

121815
d34f21
One Hundred and Twenty-One Thousand Eight Hundred and Fifteen in Base 21 Unovigesimal
121816
d34g21
One Hundred and Twenty-One Thousand Eight Hundred and Sixteen in Base 21 Unovigesimal
121817
d34h21
One Hundred and Twenty-One Thousand Eight Hundred and Seventeen in Base 21 Unovigesimal
121819
d34j21
One Hundred and Twenty-One Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
121820
d34k21
One Hundred and Twenty-One Thousand Eight Hundred and Twenty in Base 21 Unovigesimal
121821
d35021
One Hundred and Twenty-One Thousand Eight Hundred and Twenty-One in Base 21 Unovigesimal

Scientific Notation

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

1.21818e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001cb11d19bbg0j21

The reciprocal of 121818 in Base 21 Unovigesimal.

Palindrome?

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

The number d34i21 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 eight hundred and eightteen is a composite number with 16 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and twenty-one thousand eight hundred and eightteen is a composite number with 16 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 eight hundred and eightteen has the following 4 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
79
3g21
Seventy-Nine in Base 21 Unovigesimal
257
c521
Two Hundred and Fifty-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

2211 · 3211 · 3g211 · c5211 = d34i21

Base Conversions

The number one hundred and twenty-one thousand eight hundred and eightteen in 35 different bases