Base | Representation |
---|---|
bin | 1011110100010110000… |
… | …1111111000110011110 |
3 | 201102001111202122010202 |
4 | 2331011201333012132 |
5 | 11311301140000110 |
6 | 233134245303502 |
7 | 20445162345224 |
oct | 2750541770636 |
9 | 642044678122 |
10 | 203030000030 |
11 | 79117162060 |
12 | 33422404b92 |
13 | 161b7ca86c0 |
14 | 9b80696b14 |
15 | 54344920a5 |
hex | 2f4587f19e |
203030000030 has 64 divisors (see below), whose sum is σ = 429803672256. Its totient is φ = 68077056000.
The previous prime is 203030000029. The next prime is 203030000039. The reversal of 203030000030 is 30000030302.
It is a happy number.
203030000030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (11).
It is a junction number, because it is equal to n+sod(n) for n = 203029999966 and 203030000020.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (203030000039) 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, 1270190 + ... + 1421070.
It is an arithmetic number, because the mean of its divisors is an integer number (6715682379).
Almost surely, 2203030000030 is an apocalyptic number.
203030000030 is an abundant number, since it is smaller than the sum of its proper divisors (226773672226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
203030000030 is a wasteful number, since it uses less digits than its factorization.
203030000030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 151853.
The product of its (nonzero) digits is 54, while the sum is 11.
Adding to 203030000030 its reverse (30000030302), we get a palindrome (233030030332).
The spelling of 203030000030 in words is "two hundred three billion, thirty million, thirty", and thus it is an aban number.
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