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212068627812 = 223238771519421
BaseRepresentation
bin1100010110000001000…
…1100111010101100100
3202021101102112111111200
43011200101213111210
511433304032042222
6241231210402500
721215154410556
oct3054021472544
9667342474450
10212068627812
1181a35236978
1235125430430
1316cc8761a72
14a39ac854d6
1557b2c4deac
hex3160467564

212068627812 has 36 divisors (see below), whose sum is σ = 536200984956. Its totient is φ = 70671263040.

The previous prime is 212068627811. The next prime is 212068627817. The reversal of 212068627812 is 218726860212.

212068627812 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 6 + 8 + 627 + 8 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 122208973056 + 89859654756 = 349584^2 + 299766^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (212068627811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620139 + ... + 899282.

Almost surely, 2212068627812 is an apocalyptic number.

It is an amenable number.

212068627812 is an abundant number, since it is smaller than the sum of its proper divisors (324132357144).

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

212068627812 is a wasteful number, since it uses less digits than its factorization.

212068627812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523308 (or 1523303 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 212068627812 in words is "two hundred twelve billion, sixty-eight million, six hundred twenty-seven thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 3877 7754 11631 15508 23262 34893 46524 69786 139572 1519421 3038842 4558263 6077684 9116526 13674789 18233052 27349578 54699156 5890795217 11781590434 17672385651 23563180868 35344771302 53017156953 70689542604 106034313906 212068627812