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212131110332 = 225919316012909
BaseRepresentation
bin1100010110001111111…
…1111101110110111100
3202021112210002221102002
43011203333331312330
511433421031012312
6241241321521432
721216543454421
oct3054377756674
9667483087362
10212131110332
1181a67532a19
1235142343278
131700869a97b
14a3a52abd48
1557b84924c2
hex3163ffddbc

212131110332 has 48 divisors (see below), whose sum is σ = 379845093600. Its totient is φ = 103627161600.

The previous prime is 212131110293. The next prime is 212131110337. The reversal of 212131110332 is 233011131212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212131110337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72920894 + ... + 72923802.

It is an arithmetic number, because the mean of its divisors is an integer number (7913439450).

Almost surely, 2212131110332 is an apocalyptic number.

It is an amenable number.

212131110332 is a deficient number, since it is larger than the sum of its proper divisors (167713983268).

212131110332 is a wasteful number, since it uses less digits than its factorization.

212131110332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4764 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212131110332 its reverse (233011131212), we get a palindrome (445142241544).

The spelling of 212131110332 in words is "two hundred twelve billion, one hundred thirty-one million, one hundred ten thousand, three hundred thirty-two".

Divisors: 1 2 4 59 118 193 236 386 772 1601 2909 3202 5818 6404 11387 11636 22774 45548 94459 171631 188918 308993 343262 377836 561437 617986 686524 1122874 1235972 2245748 4657309 9314618 18230587 18629236 33124783 36461174 66249566 72922348 132499132 274781231 549562462 898860637 1099124924 1797721274 3595442548 53032777583 106065555166 212131110332