The Number

72871

Seventy-Two Thousand Eight Hundred and Seventy-One

In Base 21 Unovigesimal Is

7i5121

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

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

Nearby Numbers

Positive, nonzero integers within three units

72868
7i4j21
Seventy-Two Thousand Eight Hundred and Sixty-Eight in Base 21 Unovigesimal
72869
7i4k21
Seventy-Two Thousand Eight Hundred and Sixty-Nine in Base 21 Unovigesimal
72870
7i5021
Seventy-Two Thousand Eight Hundred and Seventy in Base 21 Unovigesimal
72872
7i5221
Seventy-Two Thousand Eight Hundred and Seventy-Two in Base 21 Unovigesimal
72873
7i5321
Seventy-Two Thousand Eight Hundred and Seventy-Three in Base 21 Unovigesimal
72874
7i5421
Seventy-Two Thousand Eight Hundred and Seventy-Four in Base 21 Unovigesimal

Scientific Notation

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

7.2871e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002e0k2bif06g4b21

The reciprocal of 72871 in Base 21 Unovigesimal.

Palindrome?

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

The number 7i5121 is not a palindrome.

A Prime Number

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

Seventy-two thousand eight hundred and seventy-one is the 7203rd prime number.   See primes in Base 21 Unovigesimal

Not A Composite

Composites have more than just these two factors.

Seventy-Two Thousand Eight Hundred and Seventy-One is not a composite number because it has exactly two factors: One and Seventy-Two Thousand Eight Hundred and Seventy-One

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number seventy-two thousand eight hundred and seventy-one has the following 1 prime factor:

72871
7i5121
Seventy-Two Thousand Eight Hundred and Seventy-One in Base 21 Unovigesimal

Prime Factorization

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

7i51211 = 7i5121

Base Conversions

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