Nearby Numbers

Positive, nonzero integers within three units

21010

Twenty-One Thousand and Ten

21011

Twenty-One Thousand and Eleven

21012

Twenty-One Thousand and Twelve

21014

Twenty-One Thousand and Fourteen

21015

Twenty-One Thousand and Fifteen

21016

Twenty-One Thousand and Sixteen

Scientific Notation

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

2.1013e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004758958739827726

The reciprocal of 21013.

Palindrome?

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

The number 21013 is not a palindrome.

A Prime Number

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

Twenty-one thousand and thirteen is the 2363rd prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand and Thirteen is not a composite number because it has exactly two factors: One and Twenty-One Thousand and Thirteen

Prime Factors

21013

Twenty-One Thousand and Thirteen

Prime Factorization

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

210131 = 21013

Base Conversions

The number twenty-one thousand and thirteen in 35 different bases