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212043212868 = 22348013680539
BaseRepresentation
bin1100010101111011000…
…0101010100001000100
3202021022122201021202110
43011132300222201010
511433231030302433
6241224501541020
721214425366534
oct3053660524104
9667278637673
10212043212868
1181a21958293
1235118a14770
1316cc3403a36
14a39774b4c4
1557b08cd963
hex315ec2a844

212043212868 has 24 divisors (see below), whose sum is σ = 494870686240. Its totient is φ = 70666329600.

The previous prime is 212043212813. The next prime is 212043212869. The reversal of 212043212868 is 868212340212.

It is not an unprimeable number, because it can be changed into a prime (212043212869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782658 + ... + 1897881.

Almost surely, 2212043212868 is an apocalyptic number.

It is an amenable number.

212043212868 is an abundant number, since it is smaller than the sum of its proper divisors (282827473372).

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

212043212868 is a wasteful number, since it uses less digits than its factorization.

212043212868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685347 (or 3685345 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 212043212868 in words is "two hundred twelve billion, forty-three million, two hundred twelve thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 4801 9602 14403 19204 28806 57612 3680539 7361078 11041617 14722156 22083234 44166468 17670267739 35340535478 53010803217 70681070956 106021606434 212043212868