Base | Representation |
---|---|
bin | 1000010001110001… |
… | …0010100001000111 |
3 | 12201212002201111002 |
4 | 2010130102201013 |
5 | 14022313232031 |
6 | 1004253203515 |
7 | 106030521401 |
oct | 20434224107 |
9 | 5655081432 |
10 | 2222008391 |
11 | a402a1879 |
12 | 52019059b |
13 | 295468c85 |
14 | 171169b71 |
15 | d0117ccb |
hex | 84712847 |
2222008391 has 16 divisors (see below), whose sum is σ = 2345179200. Its totient is φ = 2102381568.
The previous prime is 2222008361. The next prime is 2222008417. The reversal of 2222008391 is 1938002222.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2222008391 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2222008361) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285905 + ... + 293573.
It is an arithmetic number, because the mean of its divisors is an integer number (146573700).
Almost surely, 22222008391 is an apocalyptic number.
2222008391 is a deficient number, since it is larger than the sum of its proper divisors (123170809).
2222008391 is a wasteful number, since it uses less digits than its factorization.
2222008391 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7898.
The product of its (nonzero) digits is 3456, while the sum is 29.
The square root of 2222008391 is about 47138.1840019320. The cubic root of 2222008391 is about 1304.9140230004.
The spelling of 2222008391 in words is "two billion, two hundred twenty-two million, eight thousand, three hundred ninety-one".
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