Base | Representation |
---|---|
bin | 11010010101011… |
… | …00011101010001 |
3 | 120101200020220112 |
4 | 31022230131101 |
5 | 423023013340 |
6 | 33530451105 |
7 | 5321452511 |
oct | 1512543521 |
9 | 511606815 |
10 | 220907345 |
11 | 103772a5a |
12 | 61b93a95 |
13 | 369c7709 |
14 | 214a5841 |
15 | 145d9065 |
hex | d2ac751 |
220907345 has 16 divisors (see below), whose sum is σ = 268894080. Its totient is φ = 174201984.
The previous prime is 220907311. The next prime is 220907347. The reversal of 220907345 is 543709022.
It is a happy number.
220907345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 220907345 - 210 = 220906321 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (220907347) 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, 207284 + ... + 208346.
It is an arithmetic number, because the mean of its divisors is an integer number (16805880).
Almost surely, 2220907345 is an apocalyptic number.
It is an amenable number.
220907345 is a deficient number, since it is larger than the sum of its proper divisors (47986735).
220907345 is a wasteful number, since it uses less digits than its factorization.
220907345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1624.
The product of its (nonzero) digits is 15120, while the sum is 32.
The square root of 220907345 is about 14862.9520957312. The cubic root of 220907345 is about 604.5098550449.
The spelling of 220907345 in words is "two hundred twenty million, nine hundred seven thousand, three hundred forty-five".
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