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30212311031212 = 2283479189981079
BaseRepresentation
bin1101101111010010110100…
…00100010001110110101100
310221222021020220100121221111
412313221122010101312230
512424444303110444322
6144131202153241404
76235524142362412
oct667513204216654
9127867226317844
1030212311031212
119698a72a42212
12347b421a03264
1313b2016183a7b
147663d84d12b2
15375d58e5b177
hex1b7a5a111dac

30212311031212 has 24 divisors (see below), whose sum is σ = 53620260019200. Its totient is φ = 14892996666576.

The previous prime is 30212311031207. The next prime is 30212311031233. The reversal of 30212311031212 is 21213011321203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94831512 + ... + 95149567.

It is an arithmetic number, because the mean of its divisors is an integer number (2234177500800).

Almost surely, 230212311031212 is an apocalyptic number.

It is an amenable number.

30212311031212 is a deficient number, since it is larger than the sum of its proper divisors (23407948987988).

30212311031212 is a wasteful number, since it uses less digits than its factorization.

30212311031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189981645 (or 189981643 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30212311031212 its reverse (21213011321203), we get a palindrome (51425322352415).

The spelling of 30212311031212 in words is "thirty trillion, two hundred twelve billion, three hundred eleven million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 83 166 332 479 958 1916 39757 79514 159028 189981079 379962158 759924316 15768429557 31536859114 63073718228 91000936841 182001873682 364003747364 7553077757803 15106155515606 30212311031212