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212013235236 = 2231115831014631
BaseRepresentation
bin1100010101110011111…
…0010011110000100100
3202021020120022021011210
43011130332103300210
511433200342011421
6241221511231420
721213612523305
oct3053476236044
9667216267153
10212013235236
1181a06a42690
123510a978570
1316cba138caa
14a3937867ac
1557ace5b576
hex315cf93c24

212013235236 has 48 divisors (see below), whose sum is σ = 540011501568. Its totient is φ = 64205786400.

The previous prime is 212013235229. The next prime is 212013235237. The reversal of 212013235236 is 632532310212.

212013235236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2120132352362 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212013235237) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 298360 + ... + 716271.

It is an arithmetic number, because the mean of its divisors is an integer number (11250239616).

Almost surely, 2212013235236 is an apocalyptic number.

It is an amenable number.

212013235236 is an abundant number, since it is smaller than the sum of its proper divisors (327998266332).

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

212013235236 is a wasteful number, since it uses less digits than its factorization.

212013235236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016232 (or 1016230 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 212013235236 its reverse (632532310212), we get a palindrome (844545545448).

The spelling of 212013235236 in words is "two hundred twelve billion, thirteen million, two hundred thirty-five thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1583 3166 4749 6332 9498 17413 18996 34826 52239 69652 104478 208956 1014631 2029262 3043893 4058524 6087786 11160941 12175572 22321882 33482823 44643764 66965646 133931292 1606160873 3212321746 4818482619 6424643492 9636965238 17667769603 19273930476 35335539206 53003308809 70671078412 106006617618 212013235236