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30300222020 = 2252296615769
BaseRepresentation
bin11100001110000010…
…001011001001000100
32220012200012202120012
4130032002023021010
5444023324101040
621530354525352
72121603431465
oct341602131104
986180182505
1030300222020
111193975a302
125a57596858
132b1b63cc73
141676278d6c
15bc517d865
hex70e08b244

30300222020 has 24 divisors (see below), whose sum is σ = 63908338200. Its totient is φ = 12067160832.

The previous prime is 30300221981. The next prime is 30300222041. The reversal of 30300222020 is 2022200303.

It can be written as a sum of positive squares in 4 ways, for example, as 10004800576 + 20295421444 = 100024^2 + 142462^2 .

It is a super-2 number, since 2×303002220202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30300221986 and 30300222004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3303305 + ... + 3312464.

It is an arithmetic number, because the mean of its divisors is an integer number (2662847425).

Almost surely, 230300222020 is an apocalyptic number.

It is an amenable number.

30300222020 is an abundant number, since it is smaller than the sum of its proper divisors (33608116180).

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

30300222020 is a wasteful number, since it uses less digits than its factorization.

30300222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616007 (or 6616005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 30300222020 its reverse (2022200303), we get a palindrome (32322422323).

The spelling of 30300222020 in words is "thirty billion, three hundred million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 229 458 916 1145 2290 4580 6615769 13231538 26463076 33078845 66157690 132315380 1515011101 3030022202 6060044404 7575055505 15150111010 30300222020