The Number

1345

One Thousand Three Hundred and Forty-Five

In Base 18 Octodecimal Is

42d18

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

1342
42a18
One Thousand Three Hundred and Forty-Two in Base 18 Octodecimal
1343
42b18
One Thousand Three Hundred and Forty-Three in Base 18 Octodecimal
1344
42c18
One Thousand Three Hundred and Forty-Four in Base 18 Octodecimal
1346
42e18
One Thousand Three Hundred and Forty-Six in Base 18 Octodecimal
1347
42f18
One Thousand Three Hundred and Forty-Seven in Base 18 Octodecimal
1348
42g18
One Thousand Three Hundred and Forty-Eight in Base 18 Octodecimal

Scientific Notation

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

1.345e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00460fg3455fd9a18

The reciprocal of 1345 in Base 18 Octodecimal.

Palindrome?

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

The number 42d18 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 three hundred and forty-five is a composite number with 4 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

One thousand three hundred and forty-five is a composite number with 4 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 three hundred and forty-five has the following 2 prime factors:

5
518
Five in Base 18 Octodecimal
269
eh18
Two Hundred and Sixty-Nine in Base 18 Octodecimal

Prime Factorization

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

5181 · eh181 = 42d18

Base Conversions

The number one thousand three hundred and forty-five in 35 different bases