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212352235284 = 223719133052779
BaseRepresentation
bin1100010111000100101…
…1011111011100010100
3202022010012012020211010
43011301023133130110
511434344133012114
6241315301212220
721225200134530
oct3056113373424
9668105166733
10212352235284
1182070334412
12351a4401070
1317042440437
14a3c67ccbc0
1557ccac0c59
hex31712df714

212352235284 has 48 divisors (see below), whose sum is σ = 596076454400. Its totient is φ = 57478800096.

The previous prime is 212352235283. The next prime is 212352235313. The reversal of 212352235284 is 482532253212.

It is a super-2 number, since 2×2123522352842 (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 (212352235283) 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, 66524794 + ... + 66527985.

Almost surely, 2212352235284 is an apocalyptic number.

It is an amenable number.

212352235284 is an abundant number, since it is smaller than the sum of its proper divisors (383724219116).

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

212352235284 is a wasteful number, since it uses less digits than its factorization.

212352235284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133052812 (or 133052810 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

Adding to 212352235284 its reverse (482532253212), we get a palindrome (694884488496).

The spelling of 212352235284 in words is "two hundred twelve billion, three hundred fifty-two million, two hundred thirty-five thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 133052779 266105558 399158337 532211116 798316674 931369453 1596633348 1862738906 2528002801 2794108359 3725477812 5056005602 5588216718 7584008403 10112011204 11176433436 15168016806 17696019607 30336033612 35392039214 53088058821 70784078428 106176117642 212352235284