The Number

128649

One Hundred and Twenty-Eight Thousand Six Hundred and Forty-Nine

In Base 21 Unovigesimal Is

dif321

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

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

Nearby Numbers

Positive, nonzero integers within three units

128646
dif021
One Hundred and Twenty-Eight Thousand Six Hundred and Forty-Six in Base 21 Unovigesimal
128647
dif121
One Hundred and Twenty-Eight Thousand Six Hundred and Forty-Seven in Base 21 Unovigesimal
128648
dif221
One Hundred and Twenty-Eight Thousand Six Hundred and Forty-Eight in Base 21 Unovigesimal
128650
dif421
One Hundred and Twenty-Eight Thousand Six Hundred and Fifty in Base 21 Unovigesimal
128651
dif521
One Hundred and Twenty-Eight Thousand Six Hundred and Fifty-One in Base 21 Unovigesimal
128652
dif621
One Hundred and Twenty-Eight Thousand Six Hundred and Fifty-Two in Base 21 Unovigesimal

Scientific Notation

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

1.28649e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0001afe08ej5g8421

The reciprocal of 128649 in Base 21 Unovigesimal.

Palindrome?

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

The number dif321 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-eight thousand six hundred and forty-nine 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-eight thousand six hundred and forty-nine 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-eight thousand six hundred and forty-nine has the following 4 prime factors:

3
321
Three in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
37
1g21
Thirty-Seven in Base 21 Unovigesimal
61
2j21
Sixty-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

3211 · j211 · 1g211 · 2j211 = dif321

Base Conversions

The number one hundred and twenty-eight thousand six hundred and forty-nine in 35 different bases