Base | Representation |
---|---|
bin | 1000010101101111… |
… | …0001011010010101 |
3 | 12210000102012111011 |
4 | 2011123301122111 |
5 | 14041043300010 |
6 | 1010050012221 |
7 | 106322132254 |
oct | 20533613225 |
9 | 5700365434 |
10 | 2238650005 |
11 | a49728979 |
12 | 525877071 |
13 | 298a44897 |
14 | 17345c79b |
15 | d1803a8a |
hex | 856f1695 |
2238650005 has 4 divisors (see below), whose sum is σ = 2686380012. Its totient is φ = 1790920000.
The previous prime is 2238649991. The next prime is 2238650017. The reversal of 2238650005 is 5000568322.
It is a happy number.
2238650005 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.
It can be written as a sum of positive squares in 2 ways, for example, as 1134948721 + 1103701284 = 33689^2 + 33222^2 .
It is not a de Polignac number, because 2238650005 - 213 = 2238641813 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
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, 223864996 + ... + 223865005.
It is an arithmetic number, because the mean of its divisors is an integer number (671595003).
Almost surely, 22238650005 is an apocalyptic number.
It is an amenable number.
2238650005 is a deficient number, since it is larger than the sum of its proper divisors (447730007).
2238650005 is an equidigital number, since it uses as much as digits as its factorization.
2238650005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 447730006.
The product of its (nonzero) digits is 14400, while the sum is 31.
The square root of 2238650005 is about 47314.3741900915. The cubic root of 2238650005 is about 1308.1636186835.
The spelling of 2238650005 in words is "two billion, two hundred thirty-eight million, six hundred fifty thousand, five".
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