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212033012312 = 231117180178697
BaseRepresentation
bin1100010101111000100…
…1110000001001011000
3202021021221112001020002
43011132021300021120
511433220422343222
6241223455152132
721214242603362
oct3053611601130
9667257461202
10212033012312
1181a17120480
1235115515648
1316cc1271ac4
14a396253d32
1557aea66392
hex315e270258

212033012312 has 64 divisors (see below), whose sum is σ = 459476699040. Its totient is φ = 90657792000.

The previous prime is 212033012293. The next prime is 212033012327. The reversal of 212033012312 is 213210330212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2654948 + ... + 2733644.

Almost surely, 2212033012312 is an apocalyptic number.

212033012312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212033012312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229738349520).

212033012312 is an abundant number, since it is smaller than the sum of its proper divisors (247443686728).

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

212033012312 is a wasteful number, since it uses less digits than its factorization.

212033012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80532 (or 80528 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212033012312 its reverse (213210330212), we get a palindrome (425243342524).

The spelling of 212033012312 in words is "two hundred twelve billion, thirty-three million, twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 187 374 748 1496 1801 3602 7204 14408 19811 30617 39622 61234 78697 79244 122468 157394 158488 244936 314788 336787 629576 673574 865667 1337849 1347148 1731334 2675698 2694296 3462668 5351396 6925336 10702792 14716339 29432678 58865356 117730712 141733297 283466594 566933188 1133866376 1559066267 2409466049 3118132534 4818932098 6236265068 9637864196 12472530136 19275728392 26504126539 53008253078 106016506156 212033012312