The Number

20155

Twenty Thousand One Hundred and Fifty-Five

In Base 8 Octal Is

472738

The numbers with a 8 subscript use Base 8 Octal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

20152
472708
Twenty Thousand One Hundred and Fifty-Two in Base 8 Octal
20153
472718
Twenty Thousand One Hundred and Fifty-Three in Base 8 Octal
20154
472728
Twenty Thousand One Hundred and Fifty-Four in Base 8 Octal
20156
472748
Twenty Thousand One Hundred and Fifty-Six in Base 8 Octal
20157
472758
Twenty Thousand One Hundred and Fifty-Seven in Base 8 Octal
20158
472768
Twenty Thousand One Hundred and Fifty-Eight in Base 8 Octal

Scientific Notation

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

2.0155e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00001500321564656740458

The reciprocal of 20155 in Base 8 Octal.

Palindrome?

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

The number 472738 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 fifty-five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 8 Octal

A Composite

Composites have more than just these two factors.

Twenty thousand one hundred and fifty-five 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 one hundred and fifty-five has the following 3 prime factors:

5
58
Five in Base 8 Octal
29
358
Twenty-Nine in Base 8 Octal
139
2138
One Hundred and Thirty-Nine in Base 8 Octal

Prime Factorization

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

581 · 3581 · 21381 = 472738

Base Conversions

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