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212202161190 = 232517138694223
BaseRepresentation
bin1100010110100000111…
…1000000010000100110
3202021201201210200212100
43011220033000100212
511434042223124230
6241252340432530
721221365415655
oct3055017002046
9667651720770
10212202161190
1181aa3651538
12351620a8746
131701a3168b6
14a3b08c519c
1557be829660
hex31683c0426

212202161190 has 48 divisors (see below), whose sum is σ = 584180071488. Its totient is φ = 53258581248.

The previous prime is 212202161179. The next prime is 212202161191. The reversal of 212202161190 is 91161202212.

212202161190 is a `hidden beast` number, since 2 + 1 + 2 + 20 + 21 + 611 + 9 + 0 = 666.

It is a super-2 number, since 2×2122021611902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202161191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69345582 + ... + 69348641.

It is an arithmetic number, because the mean of its divisors is an integer number (12170418156).

Almost surely, 2212202161190 is an apocalyptic number.

212202161190 is an abundant number, since it is smaller than the sum of its proper divisors (371977910298).

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

212202161190 is a wasteful number, since it uses less digits than its factorization.

212202161190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138694253 (or 138694250 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 212202161190 in words is "two hundred twelve billion, two hundred two million, one hundred sixty-one thousand, one hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 306 510 765 1530 138694223 277388446 416082669 693471115 832165338 1248248007 1386942230 2080413345 2357801791 2496496014 4160826690 4715603582 6241240035 7073405373 11789008955 12482480070 14146810746 21220216119 23578017910 35367026865 42440432238 70734053730 106101080595 212202161190