The Number

20742

Twenty Thousand Seven Hundred and Forty-Two

In Base 18 Octodecimal Is

3a0618

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

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

Nearby Numbers

Positive, nonzero integers within three units

20739
3a0318
Twenty Thousand Seven Hundred and Thirty-Nine in Base 18 Octodecimal
20740
3a0418
Twenty Thousand Seven Hundred and Forty in Base 18 Octodecimal
20741
3a0518
Twenty Thousand Seven Hundred and Forty-One in Base 18 Octodecimal
20743
3a0718
Twenty Thousand Seven Hundred and Forty-Three in Base 18 Octodecimal
20744
3a0818
Twenty Thousand Seven Hundred and Forty-Four in Base 18 Octodecimal
20745
3a0918
Twenty Thousand Seven Hundred and Forty-Five in Base 18 Octodecimal

Scientific Notation

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

2.0742e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000511dh4fed2a05918

The reciprocal of 20742 in Base 18 Octodecimal.

Palindrome?

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

The number 3a0618 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 seven hundred and forty-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty thousand seven hundred and forty-two is a composite number with 8 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 seven hundred and forty-two has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
3
318
Three in Base 18 Octodecimal
3457
ac118
Three Thousand Four Hundred and Fifty-Seven in Base 18 Octodecimal

Prime Factorization

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

2181 · 3181 · ac1181 = 3a0618

Base Conversions

The number twenty thousand seven hundred and forty-two in 35 different bases