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312104204212 = 22174589767709
BaseRepresentation
bin1001000101010101101…
…11000011011110110100
31002211121002010022101211
410202222313003132310
520103142134013322
6355213444131204
731356142651423
oct4425267033664
91084532108354
10312104204212
111103a9761059
12505a3096b04
132357b749718
141116a9272ba
1581ba164b77
hex48aadc37b4

312104204212 has 12 divisors (see below), whose sum is σ = 578310731460. Its totient is φ = 146872566656.

The previous prime is 312104204141. The next prime is 312104204227. The reversal of 312104204212 is 212402401213.

It can be written as a sum of positive squares in 2 ways, for example, as 254506124196 + 57598080016 = 504486^2 + 239996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294883787 + ... + 2294883922.

It is an arithmetic number, because the mean of its divisors is an integer number (48192560955).

Almost surely, 2312104204212 is an apocalyptic number.

It is an amenable number.

312104204212 is a deficient number, since it is larger than the sum of its proper divisors (266206527248).

312104204212 is a wasteful number, since it uses less digits than its factorization.

312104204212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589767730 (or 4589767728 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 312104204212 its reverse (212402401213), we get a palindrome (524506605425).

The spelling of 312104204212 in words is "three hundred twelve billion, one hundred four million, two hundred four thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 4589767709 9179535418 18359070836 78026051053 156052102106 312104204212