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30130302020 = 22571316555111
BaseRepresentation
bin11100000011111001…
…111110110001000100
32212202211110221010212
4130003321332301010
5443201324131040
621501444534552
72114441225060
oct340371766104
985684427125
1030130302020
1111861851955
125a0a6b1458
132ac23881a0
14165b886aa0
15bb52b6d65
hex703e7ec44

30130302020 has 48 divisors (see below), whose sum is σ = 77875246848. Its totient is φ = 9535743360.

The previous prime is 30130301987. The next prime is 30130302029. The reversal of 30130302020 is 2020303103.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30130301986 and 30130302004.

It is not an unprimeable number, because it can be changed into a prime (30130302029) 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, 8275736 + ... + 8279375.

It is an arithmetic number, because the mean of its divisors is an integer number (1622400976).

Almost surely, 230130302020 is an apocalyptic number.

It is an amenable number.

30130302020 is an abundant number, since it is smaller than the sum of its proper divisors (47744944828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30130302020 is a wasteful number, since it uses less digits than its factorization.

30130302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555140 (or 16555138 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 30130302020 its reverse (2020303103), we get a palindrome (32150605123).

The spelling of 30130302020 in words is "thirty billion, one hundred thirty million, three hundred two thousand, twenty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 16555111 33110222 66220444 82775555 115885777 165551110 215216443 231771554 331102220 430432886 463543108 579428885 860865772 1076082215 1158857770 1506515101 2152164430 2317715540 3013030202 4304328860 6026060404 7532575505 15065151010 30130302020