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212213303292 = 22317684441941
BaseRepresentation
bin1100010110100011100…
…1100000011111111100
3202021202111202202221210
43011220321200133330
511434103101201132
6241253415324420
721221562213144
oct3055071403774
9667674682853
10212213303292
1181aa9971791
1235165980710
131701c718263
14a3b2185924
1557c07cabcc
hex3168e607fc

212213303292 has 12 divisors (see below), whose sum is σ = 495164374376. Its totient is φ = 70737767760.

The previous prime is 212213303273. The next prime is 212213303293. The reversal of 212213303292 is 292303312212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213303293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8842220959 + ... + 8842220982.

Almost surely, 2212213303292 is an apocalyptic number.

It is an amenable number.

212213303292 is an abundant number, since it is smaller than the sum of its proper divisors (282951071084).

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

212213303292 is a wasteful number, since it uses less digits than its factorization.

212213303292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17684441948 (or 17684441946 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 212213303292 in words is "two hundred twelve billion, two hundred thirteen million, three hundred three thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 17684441941 35368883882 53053325823 70737767764 106106651646 212213303292