Base | Representation |
---|---|
bin | 11011010010011… |
… | …00100111001001 |
3 | 120221201111101120 |
4 | 31221030213021 |
5 | 432044401434 |
6 | 34414105453 |
7 | 5446434522 |
oct | 1551144711 |
9 | 527644346 |
10 | 228903369 |
11 | 108234542 |
12 | 647ab289 |
13 | 385670a6 |
14 | 22587849 |
15 | 15168349 |
hex | da4c9c9 |
228903369 has 16 divisors (see below), whose sum is σ = 316619520. Its totient is φ = 146989440.
The previous prime is 228903313. The next prime is 228903371. The reversal of 228903369 is 963309822.
228903369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 228903369 - 212 = 228899273 is a prime.
It is a super-2 number, since 2×2289033692 = 104793504679100322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 228903369.
It is not an unprimeable number, because it can be changed into a prime (228903569) 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, 2062 + ... + 21495.
It is an arithmetic number, because the mean of its divisors is an integer number (19788720).
Almost surely, 2228903369 is an apocalyptic number.
It is an amenable number.
228903369 is a deficient number, since it is larger than the sum of its proper divisors (87716151).
228903369 is a wasteful number, since it uses less digits than its factorization.
228903369 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23680.
The product of its (nonzero) digits is 139968, while the sum is 42.
The square root of 228903369 is about 15129.5528354278. The cubic root of 228903369 is about 611.7172510573.
The spelling of 228903369 in words is "two hundred twenty-eight million, nine hundred three thousand, three hundred sixty-nine".
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