The Number

1223

One Thousand Two Hundred and Twenty-Three

In Base 11 Undecimal Is

a1211

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1220
a0a11
One Thousand Two Hundred and Twenty in Base 11 Undecimal
1221
a1011
One Thousand Two Hundred and Twenty-One in Base 11 Undecimal
1222
a1111
One Thousand Two Hundred and Twenty-Two in Base 11 Undecimal
1224
a1311
One Thousand Two Hundred and Twenty-Four in Base 11 Undecimal
1225
a1411
One Thousand Two Hundred and Twenty-Five in Base 11 Undecimal
1226
a1511
One Thousand Two Hundred and Twenty-Six in Base 11 Undecimal

Scientific Notation

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

1.223e3

Reciprocal

A number multiplied with its reciprocal is one.

0.0010a75a0021a40900511

The reciprocal of 1223 in Base 11 Undecimal.

Palindrome?

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

The number a1211 is not a palindrome.

A Prime Number

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

One thousand two hundred and twenty-three is the 200th prime number.   See primes in Base 11 Undecimal

Not A Composite

Composites have more than just these two factors.

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

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 twenty-three has the following 1 prime factor:

1223
a1211
One Thousand Two Hundred and Twenty-Three in Base 11 Undecimal

Prime Factorization

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

a12111 = a1211

Base Conversions

The number one thousand two hundred and twenty-three in 35 different bases