The Number

20145

Twenty Thousand One Hundred and Forty-Five

In Base 18 Octodecimal Is

383318

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

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

Nearby Numbers

Positive, nonzero integers within three units

20142
383018
Twenty Thousand One Hundred and Forty-Two in Base 18 Octodecimal
20143
383118
Twenty Thousand One Hundred and Forty-Three in Base 18 Octodecimal
20144
383218
Twenty Thousand One Hundred and Forty-Four in Base 18 Octodecimal
20146
383418
Twenty Thousand One Hundred and Forty-Six in Base 18 Octodecimal
20147
383518
Twenty Thousand One Hundred and Forty-Seven in Base 18 Octodecimal
20148
383618
Twenty Thousand One 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.

2.0145e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00053e6c0f0h94e718

The reciprocal of 20145 in Base 18 Octodecimal.

Palindrome?

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

The number 383318 is not a palindrome.

Not A Prime Number

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

Twenty thousand one hundred and forty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty thousand one hundred and forty-five 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 twenty thousand one hundred and forty-five has the following 4 prime factors:

3
318
Three in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
17
h18
Seventeen in Base 18 Octodecimal
79
4718
Seventy-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

3181 · 5181 · h181 · 47181 = 383318

Base Conversions

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