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212311013130 = 23253763757061
BaseRepresentation
bin1100010110111010111…
…0001111011100001010
3202022000022121221122200
43011232232033130022
511434303104410010
6241311225501030
721224156556366
oct3055656173412
9668008557580
10212311013130
118204a039617
1235192641776
1317036a39528
14a3c113c2a6
1557c917bcc0
hex316eb8f70a

212311013130 has 48 divisors (see below), whose sum is σ = 566927795304. Its totient is φ = 55086099840.

The previous prime is 212311013119. The next prime is 212311013143. The reversal of 212311013130 is 31310113212.

212311013130 is a `hidden beast` number, since 21 + 231 + 101 + 313 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 191268899649 + 21042113481 = 437343^2 + 145059^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31875201 + ... + 31881860.

Almost surely, 2212311013130 is an apocalyptic number.

212311013130 is an abundant number, since it is smaller than the sum of its proper divisors (354616782174).

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

212311013130 is a wasteful number, since it uses less digits than its factorization.

212311013130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63757111 (or 63757108 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 212311013130 its reverse (31310113212), we get a palindrome (243621126342).

The spelling of 212311013130 in words is "two hundred twelve billion, three hundred eleven million, thirteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 3330 63757061 127514122 191271183 318785305 382542366 573813549 637570610 956355915 1147627098 1912711830 2359011257 2869067745 4718022514 5738135490 7077033771 11795056285 14154067542 21231101313 23590112570 35385168855 42462202626 70770337710 106155506565 212311013130