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212012013012 = 22348893613759
BaseRepresentation
bin1100010101110011100…
…1101001010111010100
3202021020111000011121020
43011130321221113110
511433200033404022
6241221425121140
721213566243052
oct3053471512724
9667214004536
10212012013012
1181a06288388
123510a4891b0
1316cb9acb897
14a3935491d2
1557accb935c
hex315ce695d4

212012013012 has 24 divisors (see below), whose sum is σ = 494796019200. Its totient is φ = 70656196416.

The previous prime is 212012012999. The next prime is 212012013013. The reversal of 212012013012 is 210310210212.

It is a super-2 number, since 2×2120120130122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212012012982 and 212012013000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012013013) 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, 1748212 + ... + 1865547.

It is an arithmetic number, because the mean of its divisors is an integer number (20616500800).

Almost surely, 2212012013012 is an apocalyptic number.

It is an amenable number.

212012013012 is an abundant number, since it is smaller than the sum of its proper divisors (282784006188).

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

212012013012 is a wasteful number, since it uses less digits than its factorization.

212012013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618655 (or 3618653 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212012013012 its reverse (210310210212), we get a palindrome (422322223224).

The spelling of 212012013012 in words is "two hundred twelve billion, twelve million, thirteen thousand, twelve".

Divisors: 1 2 3 4 6 12 4889 9778 14667 19556 29334 58668 3613759 7227518 10841277 14455036 21682554 43365108 17667667751 35335335502 53003003253 70670671004 106006006506 212012013012