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30130011220 = 2256727978039
BaseRepresentation
bin11100000011111000…
…110111110001010100
32212202210221011020111
4130003320313301110
5443201240324340
621501434412404
72114435604211
oct340370676124
985683834214
1030130011220
1111861673421
125a0a591104
132ac22b5a0a
14165b80cb08
15bb525aaea
hex703e37c54

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".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 2797 5594 8039 11188 13985 16078 27970 32156 40195 55940 80390 160780 187399 374798 538613 749596 936995 1077226 1873990 2154452 2693065 3747980 5386130 10772260 22485083 44970166 89940332 112425415 224850830 449701660 1506500561 3013001122 6026002244 7532502805 15065005610 30130011220