The Number

42721

Forty-Two Thousand Seven Hundred and Twenty-One

In Base 13 Tridecimal Is

165a313

The numbers with a 13 subscript use Base 13 Tridecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

42718
165a013
Forty-Two Thousand Seven Hundred and Eightteen in Base 13 Tridecimal
42719
165a113
Forty-Two Thousand Seven Hundred and Nineteen in Base 13 Tridecimal
42720
165a213
Forty-Two Thousand Seven Hundred and Twenty in Base 13 Tridecimal
42722
165a413
Forty-Two Thousand Seven Hundred and Twenty-Two in Base 13 Tridecimal
42723
165a513
Forty-Two Thousand Seven Hundred and Twenty-Three in Base 13 Tridecimal
42724
165a613
Forty-Two Thousand Seven Hundred and Twenty-Four in Base 13 Tridecimal

Scientific Notation

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

4.2721e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000088ca4b11421a9713

The reciprocal of 42721 in Base 13 Tridecimal.

Palindrome?

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

The number 165a313 is not a palindrome.

Not A Prime Number

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

Forty-two thousand seven hundred and twenty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Forty-two thousand seven hundred and twenty-one 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 forty-two thousand seven hundred and twenty-one has the following 3 prime factors:

7
713
Seven in Base 13 Tridecimal
17
1413
Seventeen in Base 13 Tridecimal
359
21813
Three Hundred and Fifty-Nine in Base 13 Tridecimal

Prime Factorization

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

7131 · 14131 · 218131 = 165a313

Base Conversions

The number forty-two thousand seven hundred and twenty-one in 35 different bases