Base | Representation |
---|---|
bin | 11100000011111001… |
… | …111110110001000100 |
3 | 2212202211110221010212 |
4 | 130003321332301010 |
5 | 443201324131040 |
6 | 21501444534552 |
7 | 2114441225060 |
oct | 340371766104 |
9 | 85684427125 |
10 | 30130302020 |
11 | 11861851955 |
12 | 5a0a6b1458 |
13 | 2ac23881a0 |
14 | 165b886aa0 |
15 | bb52b6d65 |
hex | 703e7ec44 |
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".
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