Base | Representation |
---|---|
bin | 11100000011111000… |
… | …110111110001010100 |
3 | 2212202210221011020111 |
4 | 130003320313301110 |
5 | 443201240324340 |
6 | 21501434412404 |
7 | 2114435604211 |
oct | 340370676124 |
9 | 85683834214 |
10 | 30130011220 |
11 | 11861673421 |
12 | 5a0a591104 |
13 | 2ac22b5a0a |
14 | 165b80cb08 |
15 | bb525aaea |
hex | 703e37c54 |
30130011220 has 48 divisors (see below), whose sum is σ = 64248347520. Its totient is φ = 11866402944.
The previous prime is 30130011203. The next prime is 30130011221. The reversal of 30130011220 is 2211003103.
It is a super-2 number, since 2×301300112202 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30130011220.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30130011221) 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, 3743961 + ... + 3751999.
It is an arithmetic number, because the mean of its divisors is an integer number (1338507240).
Almost surely, 230130011220 is an apocalyptic number.
It is an amenable number.
30130011220 is an abundant number, since it is smaller than the sum of its proper divisors (34118336300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30130011220 is a wasteful number, since it uses less digits than its factorization.
30130011220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10912 (or 10910 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 30130011220 its reverse (2211003103), we get a palindrome (32341014323).
The spelling of 30130011220 in words is "thirty billion, one hundred thirty million, eleven thousand, two hundred twenty".
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