The Number

138521

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

In Base 7 Septenary Is

11145657

The numbers with a 7 subscript use Base 7 Septenary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

138518
11145627
One Hundred and Thirty-Eight Thousand Five Hundred and Eightteen in Base 7 Septenary
138519
11145637
One Hundred and Thirty-Eight Thousand Five Hundred and Nineteen in Base 7 Septenary
138520
11145647
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty in Base 7 Septenary
138522
11145667
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-Two in Base 7 Septenary
138523
11146007
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-Three in Base 7 Septenary
138524
11146017
One Hundred and Thirty-Eight Thousand Five Hundred and Twenty-Four in Base 7 Septenary

Scientific Notation

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

1.38521e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000056421364053545165147

The reciprocal of 138521 in Base 7 Septenary.

Palindrome?

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

The number 11145657 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 thirty-eight thousand five hundred and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

One hundred and thirty-eight thousand five hundred and twenty-one is a composite number with 4 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 thousand five hundred and twenty-one has the following 2 prime factors:

71
1317
Seventy-One in Base 7 Septenary
1951
54557
One Thousand Nine Hundred and Fifty-One in Base 7 Septenary

Prime Factorization

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

13171 · 545571 = 11145657

Base Conversions

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