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30212311194 = 232131011278341
BaseRepresentation
bin11100001000110010…
…110100100010011010
32212222112210102120200
4130020302310202122
5443333322424234
621513534403030
72116455256632
oct341062644232
985875712520
1030212311194
11118a407562a
125a32060476
132b0636cc20
1416687136c2
15bbc5b5d99
hex708cb489a

30212311194 has 48 divisors (see below), whose sum is σ = 71193422664. Its totient is φ = 9204048000.

The previous prime is 30212311183. The next prime is 30212311229. The reversal of 30212311194 is 49111321203.

It can be written as a sum of positive squares in 4 ways, for example, as 22288997025 + 7923314169 = 149295^2 + 89013^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 615537 + ... + 662804.

Almost surely, 230212311194 is an apocalyptic number.

30212311194 is an abundant number, since it is smaller than the sum of its proper divisors (40981111470).

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

30212311194 is a wasteful number, since it uses less digits than its factorization.

30212311194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278463 (or 1278460 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 30212311194 its reverse (49111321203), we get a palindrome (79323632397).

The spelling of 30212311194 in words is "thirty billion, two hundred twelve million, three hundred eleven thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 101 117 202 234 303 606 909 1313 1818 2626 3939 7878 11817 23634 1278341 2556682 3835023 7670046 11505069 16618433 23010138 33236866 49855299 99710598 129112441 149565897 258224882 299131794 387337323 774674646 1162011969 1678461733 2324023938 3356923466 5035385199 10070770398 15106155597 30212311194