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30133020220 = 2256612279351
BaseRepresentation
bin11100000100000100…
…010110011000111100
32212210000121000210221
4130010010112120330
5443203023121340
621502023111124
72114503305622
oct340404263074
985700530727
1030133020220
11118633390a6
125a0b5a24a4
132ac2aca4a4
14165bd93512
15bb565244a
hex70411663c

30133020220 has 24 divisors (see below), whose sum is σ = 63375103008. Its totient is φ = 12034968000.

The previous prime is 30133020191. The next prime is 30133020287. The reversal of 30133020220 is 2202033103.

It is a junction number, because it is equal to n+sod(n) for n = 30133020194 and 30133020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126456 + ... + 1152895.

It is an arithmetic number, because the mean of its divisors is an integer number (2640629292).

Almost surely, 230133020220 is an apocalyptic number.

It is an amenable number.

30133020220 is an abundant number, since it is smaller than the sum of its proper divisors (33242082788).

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

30133020220 is a wasteful number, since it uses less digits than its factorization.

30133020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280021 (or 2280019 counting only the distinct ones).

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

Adding to 30133020220 its reverse (2202033103), we get a palindrome (32335053323).

The spelling of 30133020220 in words is "thirty billion, one hundred thirty-three million, twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 6610 13220 2279351 4558702 9117404 11396755 22793510 45587020 1506651011 3013302022 6026604044 7533255055 15066510110 30133020220