Base | Representation |
---|---|
bin | 100100001110101001… |
… | …110100100101110101 |
3 | 10201102001020200122022 |
4 | 210032221310211311 |
5 | 1114132020100010 |
6 | 25512021442525 |
7 | 2544664135142 |
oct | 441651644565 |
9 | 121361220568 |
10 | 38900550005 |
11 | 15552389a89 |
12 | 7657870445 |
13 | 388c365035 |
14 | 1c505733c9 |
15 | 102a20dd55 |
hex | 90ea74975 |
38900550005 has 4 divisors (see below), whose sum is σ = 46680660012. Its totient is φ = 31120440000.
The previous prime is 38900549951. The next prime is 38900550071. The reversal of 38900550005 is 50005500983.
38900550005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50005500983 = 162413 ⋅307891.
It can be written as a sum of positive squares in 2 ways, for example, as 20197525924 + 18703024081 = 142118^2 + 136759^2 .
It is a de Polignac number, because none of the positive numbers 2k-38900550005 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3890054996 + ... + 3890055005.
It is an arithmetic number, because the mean of its divisors is an integer number (11670165003).
Almost surely, 238900550005 is an apocalyptic number.
It is an amenable number.
38900550005 is a deficient number, since it is larger than the sum of its proper divisors (7780110007).
38900550005 is an equidigital number, since it uses as much as digits as its factorization.
38900550005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7780110006.
The product of its (nonzero) digits is 27000, while the sum is 35.
The spelling of 38900550005 in words is "thirty-eight billion, nine hundred million, five hundred fifty thousand, five".
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