Nearby Numbers

Positive, nonzero integers within three units

21015

974713

Twenty-One Thousand and Fifteen in Base 13 Tridecimal

21016

974813

Twenty-One Thousand and Sixteen in Base 13 Tridecimal

21017

974913

Twenty-One Thousand and Seventeen in Base 13 Tridecimal

21019

974b13

Twenty-One Thousand and Nineteen in Base 13 Tridecimal

21020

974c13

Twenty-One Thousand and Twenty in Base 13 Tridecimal

21021

975013

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

Scientific Notation

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

2.1018e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000148860905043c13

The reciprocal of 21018 in Base 13 Tridecimal.

Palindrome?

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

The number 974a13 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand and eightteen is a composite number with 16 total factors (including 1 and itself).   See primes in Base 13 Tridecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand and eightteen is a composite number with 16 total factors (including 1 and itself).

Prime Factors

2

213

Two in Base 13 Tridecimal

3

313

Three in Base 13 Tridecimal

31

2513

Thirty-One in Base 13 Tridecimal

113

8913

One Hundred and Thirteen in Base 13 Tridecimal

Prime Factorization

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

2131 · 3131 · 25131 · 89131 = 974a13

Base Conversions

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