The Number

128139

One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Nine

In Base 12 Duodecimal Is

621a312

The numbers with a 12 subscript use Base 12 Duodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

128136
621a012
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Six in Base 12 Duodecimal
128137
621a112
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Seven in Base 12 Duodecimal
128138
621a212
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Eight in Base 12 Duodecimal
128140
621a412
One Hundred and Twenty-Eight Thousand One Hundred and Forty in Base 12 Duodecimal
128141
621a512
One Hundred and Twenty-Eight Thousand One Hundred and Forty-One in Base 12 Duodecimal
128142
621a612
One Hundred and Twenty-Eight Thousand One Hundred and Forty-Two in Base 12 Duodecimal

Scientific Notation

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

1.28139e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00001b37708175425a12

The reciprocal of 128139 in Base 12 Duodecimal.

Palindrome?

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

The number 621a312 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 one hundred and thirty-nine is a composite number with 12 total factors (including 1 and itself).   See primes in Base 12 Duodecimal

A Composite

Composites have more than just these two factors.

One hundred and twenty-eight thousand one hundred and thirty-nine is a composite number with 12 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 one hundred and thirty-nine has the following 3 prime factors:

3
312
Three in Base 12 Duodecimal
11
b12
Eleven in Base 12 Duodecimal
353
25512
Three Hundred and Fifty-Three in Base 12 Duodecimal

Prime Factorization

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

3121 · b122 · 255121 = 621a312

Base Conversions

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