The Number

20689

Twenty Thousand Six Hundred and Eighty-Nine

In Base 31 Untrigesimal Is

lgc31

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

For more familiar numbers: See Twenty Thousand Six Hundred and Eighty-Nine in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20686
lg931
Twenty Thousand Six Hundred and Eighty-Six in Base 31 Untrigesimal
20687
lga31
Twenty Thousand Six Hundred and Eighty-Seven in Base 31 Untrigesimal
20688
lgb31
Twenty Thousand Six Hundred and Eighty-Eight in Base 31 Untrigesimal
20690
lgd31
Twenty Thousand Six Hundred and Ninety in Base 31 Untrigesimal
20691
lge31
Twenty Thousand Six Hundred and Ninety-One in Base 31 Untrigesimal
20692
lgf31
Twenty Thousand Six Hundred and Ninety-Two in Base 31 Untrigesimal

Scientific Notation

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

2.0689e4

Reciprocal

A number multiplied with its reciprocal is one.

0.001djobe7ld76331

The reciprocal of 20689 in Base 31 Untrigesimal.

Palindrome?

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

The number lgc31 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 six hundred and eighty-nine is a composite number with 4 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Twenty thousand six hundred and eighty-nine 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 twenty thousand six hundred and eighty-nine has the following 2 prime factors:

17
h31
Seventeen in Base 31 Untrigesimal
1217
18831
One Thousand Two Hundred and Seventeen in Base 31 Untrigesimal

Prime Factorization

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

h311 · 188311 = lgc31

Base Conversions

The number twenty thousand six hundred and eighty-nine in 35 different bases