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30203130220 = 2251510156511
BaseRepresentation
bin11100001000001111…
…110011000101101100
32212221220111222122121
4130020033303011230
5443324000131340
621513005522324
72116314241144
oct341017630554
985856458577
1030203130220
111189997484a
125a2ab733a4
132b044a70b3
141667403924
15bbb8a094a
hex7083f316c

30203130220 has 12 divisors (see below), whose sum is σ = 63426573504. Its totient is φ = 12081252080.

The previous prime is 30203130203. The next prime is 30203130239. The reversal of 30203130220 is 2203130203.

It is a junction number, because it is equal to n+sod(n) for n = 30203130194 and 30203130203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755078236 + ... + 755078275.

It is an arithmetic number, because the mean of its divisors is an integer number (5285547792).

Almost surely, 230203130220 is an apocalyptic number.

It is an amenable number.

30203130220 is an abundant number, since it is smaller than the sum of its proper divisors (33223443284).

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

30203130220 is a wasteful number, since it uses less digits than its factorization.

30203130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510156520 (or 1510156518 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30203130220 its reverse (2203130203), we get a palindrome (32406260423).

The spelling of 30203130220 in words is "thirty billion, two hundred three million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1510156511 3020313022 6040626044 7550782555 15101565110 30203130220