Base | Representation |
---|---|
bin | 1000010011101110… |
… | …0111110001011011 |
3 | 12202102120000022200 |
4 | 2010323213301123 |
5 | 14031414100130 |
6 | 1005145221243 |
7 | 106160400465 |
oct | 20473476133 |
9 | 5672500280 |
10 | 2230221915 |
11 | a449a1809 |
12 | 522a91823 |
13 | 29708364c |
14 | 1722a7135 |
15 | d0bdb760 |
hex | 84ee7c5b |
2230221915 has 24 divisors (see below), whose sum is σ = 3929095248. Its totient is φ = 1169951040.
The previous prime is 2230221913. The next prime is 2230221941. The reversal of 2230221915 is 5191220322.
It is a happy number.
It is not a de Polignac number, because 2230221915 - 21 = 2230221913 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2230221911) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403489 + ... + 408978.
It is an arithmetic number, because the mean of its divisors is an integer number (163712302).
Almost surely, 22230221915 is an apocalyptic number.
2230221915 is a deficient number, since it is larger than the sum of its proper divisors (1698873333).
2230221915 is a wasteful number, since it uses less digits than its factorization.
2230221915 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 812539 (or 812536 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 2230221915 is about 47225.2254097320. The cubic root of 2230221915 is about 1306.5198920661.
The spelling of 2230221915 in words is "two billion, two hundred thirty million, two hundred twenty-one thousand, nine hundred fifteen".
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