The Number

138

One Hundred and Thirty-Eight

In Base 8 Octal Is

2128

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

135
2078
One Hundred and Thirty-Five in Base 8 Octal
136
2108
One Hundred and Thirty-Six in Base 8 Octal
137
2118
One Hundred and Thirty-Seven in Base 8 Octal
139
2138
One Hundred and Thirty-Nine in Base 8 Octal
140
2148
One Hundred and Forty in Base 8 Octal
141
2158
One Hundred and Forty-One in Base 8 Octal

Scientific Notation

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

1.38e2

Reciprocal

A number multiplied with its reciprocal is one.

0.003553460166563007338

The reciprocal of 138 in Base 8 Octal.

Palindrome?

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

The number 2128 is a palindrome.

Not A Prime Number

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

One hundred and thirty-eight is a composite number with 8 total factors (including 1 and itself).   See primes in Base 8 Octal

A Composite

Composites have more than just these two factors.

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 thirty-eight has the following 3 prime factors:

2
28
Two in Base 8 Octal
3
38
Three in Base 8 Octal
23
278
Twenty-Three in Base 8 Octal

Prime Factorization

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

281 · 381 · 2781 = 2128

Base Conversions

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