The Number

1218

One Thousand Two Hundred and Eightteen

In Base 13 Tridecimal Is

72913

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

For more familiar numbers: See One Thousand Two Hundred and Eightteen in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

1215
72613
One Thousand Two Hundred and Fifteen in Base 13 Tridecimal
1216
72713
One Thousand Two Hundred and Sixteen in Base 13 Tridecimal
1217
72813
One Thousand Two Hundred and Seventeen in Base 13 Tridecimal
1219
72a13
One Thousand Two Hundred and Nineteen in Base 13 Tridecimal
1220
72b13
One Thousand Two Hundred and Twenty in Base 13 Tridecimal
1221
72c13
One Thousand Two Hundred 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.

1.218e3

Reciprocal

A number multiplied with its reciprocal is one.

0.001a5ab886b2aa00213

The reciprocal of 1218 in Base 13 Tridecimal.

Palindrome?

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

The number 72913 is not a palindrome.

Not A Prime Number

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

One thousand two hundred 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.

One thousand two hundred and eightteen is a composite number with 16 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 one thousand two hundred and eightteen has the following 4 prime factors:

2
213
Two in Base 13 Tridecimal
3
313
Three in Base 13 Tridecimal
7
713
Seven in Base 13 Tridecimal
29
2313
Twenty-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

2131 · 3131 · 7131 · 23131 = 72913

Base Conversions

The number one thousand two hundred and eightteen in 35 different bases