The Number

138509

One Hundred and Thirty-Eight Thousand Five Hundred and Nine

In Base 7 Septenary Is

11145507

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 Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

138506
11145447
One Hundred and Thirty-Eight Thousand Five Hundred and Six in Base 7 Septenary
138507
11145457
One Hundred and Thirty-Eight Thousand Five Hundred and Seven in Base 7 Septenary
138508
11145467
One Hundred and Thirty-Eight Thousand Five Hundred and Eight in Base 7 Septenary
138510
11145517
One Hundred and Thirty-Eight Thousand Five Hundred and Ten in Base 7 Septenary
138511
11145527
One Hundred and Thirty-Eight Thousand Five Hundred and Eleven in Base 7 Septenary
138512
11145537
One Hundred and Thirty-Eight Thousand Five Hundred and Twelve in Base 7 Septenary

Scientific Notation

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

1.38509e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00000056422541205621650257

The reciprocal of 138509 in Base 7 Septenary.

Palindrome?

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

The number 11145507 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 nine is a composite number with 8 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 nine 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 thousand five hundred and nine has the following 3 prime factors:

7
107
Seven in Base 7 Septenary
47
657
Forty-Seven in Base 7 Septenary
421
11417
Four Hundred and Twenty-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

1071 · 6571 · 114171 = 11145507

Base Conversions

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