The Number

138242

One Hundred and Thirty-Eight Thousand Two Hundred and Forty-Two

In Base 21 Unovigesimal Is

ej9k21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

138239
ej9h21
One Hundred and Thirty-Eight Thousand Two Hundred and Thirty-Nine in Base 21 Unovigesimal
138240
ej9i21
One Hundred and Thirty-Eight Thousand Two Hundred and Forty in Base 21 Unovigesimal
138241
ej9j21
One Hundred and Thirty-Eight Thousand Two Hundred and Forty-One in Base 21 Unovigesimal
138243
eja021
One Hundred and Thirty-Eight Thousand Two Hundred and Forty-Three in Base 21 Unovigesimal
138244
eja121
One Hundred and Thirty-Eight Thousand Two Hundred and Forty-Four in Base 21 Unovigesimal
138245
eja221
One Hundred and Thirty-Eight Thousand Two Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

1.38242e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00018b8aijd2b21a21

The reciprocal of 138242 in Base 21 Unovigesimal.

Palindrome?

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

The number ej9k21 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 two hundred and forty-two is a composite number with 12 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and thirty-eight thousand two hundred and forty-two 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 thirty-eight thousand two hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
13
d21
Thirteen in Base 21 Unovigesimal
409
ja21
Four Hundred and Nine in Base 21 Unovigesimal

Prime Factorization

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

2211 · d212 · ja211 = ej9k21

Base Conversions

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