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212102601349 is a prime number
BaseRepresentation
bin1100010110001001001…
…1001101101010000101
3202021110210110112102211
43011202103031222011
511433341231220344
6241234422503421
721216046236022
oct3054223155205
9667423415384
10212102601349
1181a52430781
1235134894b71
13170027c8552
14a3a15aa549
1557b5c10334
hex31624cda85

212102601349 has 2 divisors, whose sum is σ = 212102601350. Its totient is φ = 212102601348.

The previous prime is 212102601317. The next prime is 212102601377. The reversal of 212102601349 is 943106201212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197618478849 + 14484122500 = 444543^2 + 120350^2 .

It is a cyclic number.

It is not a de Polignac number, because 212102601349 - 25 = 212102601317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212102601349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212102601379) by changing a digit.

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 as a sum of consecutive naturals, namely, 106051300674 + 106051300675.

It is an arithmetic number, because the mean of its divisors is an integer number (106051300675).

Almost surely, 2212102601349 is an apocalyptic number.

It is an amenable number.

212102601349 is a deficient number, since it is larger than the sum of its proper divisors (1).

212102601349 is an equidigital number, since it uses as much as digits as its factorization.

212102601349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 212102601349 in words is "two hundred twelve billion, one hundred two million, six hundred one thousand, three hundred forty-nine".