The Number
20987
Twenty Thousand Nine Hundred and Eighty-Seven
In Base 25 Pentavigesimal Is
18ec25
The numbers with a 25 subscript use Base 25 Pentavigesimal notation.
For more familiar numbers: See Twenty Thousand Nine Hundred and Eighty-Seven in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
2.0987e4
Reciprocal
A number multiplied with its reciprocal is one.
0.000if7nfljkjeaj25
The reciprocal of 20987 in Base 25 Pentavigesimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number 18ec25 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 nine hundred and eighty-seven is a composite number with 4 total factors (including 1 and itself). See primes in Base 25 Pentavigesimal
A Composite
Composites have more than just these two factors.
Twenty thousand nine hundred and eighty-seven is a composite number with 4 total factors (including 1 and itself).
Prime Factors
The number twenty thousand nine hundred and eighty-seven has the following 2 prime factors:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
16251
·
122251
= 18ec25
Base Conversions
The number twenty thousand nine hundred and eighty-seven in 35 different bases