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212013212308 = 221312851141917
BaseRepresentation
bin1100010101110011111…
…0001110001010010100
3202021020120021002201121
43011130332032022110
511433200340243213
6241221510533324
721213612366412
oct3053476161224
9667216232647
10212013212308
1181a06a27437
123510a967244
1316cba12b721
14a39377c2b2
1557ace5488d
hex315cf8e294

212013212308 has 24 divisors (see below), whose sum is σ = 373989125664. Its totient is φ = 105159756000.

The previous prime is 212013212287. The next prime is 212013212321. The reversal of 212013212308 is 803212310212.

212013212308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422966 + ... + 1564882.

It is an arithmetic number, because the mean of its divisors is an integer number (15582880236).

Almost surely, 2212013212308 is an apocalyptic number.

It is an amenable number.

212013212308 is a deficient number, since it is larger than the sum of its proper divisors (161975913356).

212013212308 is a wasteful number, since it uses less digits than its factorization.

212013212308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144903 (or 144901 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 212013212308 in words is "two hundred twelve billion, thirteen million, two hundred twelve thousand, three hundred eight".

Divisors: 1 2 4 131 262 524 2851 5702 11404 141917 283834 373481 567668 746962 1493924 18591127 37182254 74364508 404605367 809210734 1618421468 53003303077 106006606154 212013212308