The Number

128138

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

In Base 31 Untrigesimal Is

49af31

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

128135
49ac31
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Five in Base 31 Untrigesimal
128136
49ad31
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Six in Base 31 Untrigesimal
128137
49ae31
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Seven in Base 31 Untrigesimal
128139
49ag31
One Hundred and Twenty-Eight Thousand One Hundred and Thirty-Nine in Base 31 Untrigesimal
128140
49ah31
One Hundred and Twenty-Eight Thousand One Hundred and Forty in Base 31 Untrigesimal
128141
49ai31
One Hundred and Twenty-Eight Thousand One Hundred and Forty-One in Base 31 Untrigesimal

Scientific Notation

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

1.28138e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00076d4p5thqa31

The reciprocal of 128138 in Base 31 Untrigesimal.

Palindrome?

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

The number 49af31 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-eight is a composite number with 8 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

One hundred and twenty-eight thousand one hundred and thirty-eight is a composite number with 8 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-eight has the following 3 prime factors:

2
231
Two in Base 31 Untrigesimal
79
2h31
Seventy-Nine in Base 31 Untrigesimal
811
q531
Eight Hundred and Eleven in Base 31 Untrigesimal

Prime Factorization

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

2311 · 2h311 · q5311 = 49af31

Base Conversions

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