Base | Representation |
---|---|
bin | 1101110101100110… |
… | …00011010010011101 |
3 | 201011201210211211110 |
4 | 12322303003102131 |
5 | 110203300143120 |
6 | 3225055212233 |
7 | 352044466254 |
oct | 67263032235 |
9 | 21151724743 |
10 | 7428912285 |
11 | 3172477833 |
12 | 1533b17079 |
13 | 91512b3b2 |
14 | 5068c979b |
15 | 2d72de2e0 |
hex | 1bacc349d |
7428912285 has 32 divisors (see below), whose sum is σ = 11989440000. Its totient is φ = 3927845376.
The previous prime is 7428912259. The next prime is 7428912289. The reversal of 7428912285 is 5822198247.
It is not a de Polignac number, because 7428912285 - 215 = 7428879517 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7428912289) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816441 + ... + 825489.
It is an arithmetic number, because the mean of its divisors is an integer number (374670000).
Almost surely, 27428912285 is an apocalyptic number.
It is an amenable number.
7428912285 is a deficient number, since it is larger than the sum of its proper divisors (4560527715).
7428912285 is a wasteful number, since it uses less digits than its factorization.
7428912285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9525.
The product of its digits is 645120, while the sum is 48.
The square root of 7428912285 is about 86191.1380885529. The cubic root of 7428912285 is about 1951.2297555287.
The spelling of 7428912285 in words is "seven billion, four hundred twenty-eight million, nine hundred twelve thousand, two hundred eighty-five".
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