Nearby Numbers

Positive, nonzero integers within three units

21028

975713

Twenty-One Thousand and Twenty-Eight in Base 13 Tridecimal

21029

975813

Twenty-One Thousand and Twenty-Nine in Base 13 Tridecimal

21030

975913

Twenty-One Thousand and Thirty in Base 13 Tridecimal

21032

975b13

Twenty-One Thousand and Thirty-Two in Base 13 Tridecimal

21033

975c13

Twenty-One Thousand and Thirty-Three in Base 13 Tridecimal

21034

976013

Twenty-One Thousand and Thirty-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.

2.1031e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000148680a84083246713

The reciprocal of 21031 in Base 13 Tridecimal.

Palindrome?

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

The number 975a13 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 thirty-one is the 2367th prime number.   See primes in Base 13 Tridecimal

Not A Composite

Composites have more than just these two factors.

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

Prime Factors

21031

975a13

Twenty-One Thousand and Thirty-One in Base 13 Tridecimal

Prime Factorization

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

975a131 = 975a13

Base Conversions

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