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212560115244 = 22317713342937
BaseRepresentation
bin1100010111110110010…
…0011111011000101100
3202022122200100122111220
43011331210133120230
511440310342141434
6241352044543340
721233303111541
oct3057544373054
9668580318456
10212560115244
1182167709734
1235241b51b50
1317076526329
14a406262bc8
1557e0e84d49
hex317d91f62c

212560115244 has 12 divisors (see below), whose sum is σ = 495973602264. Its totient is φ = 70853371744.

The previous prime is 212560115227. The next prime is 212560115269. The reversal of 212560115244 is 442511065212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2125601152442 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8856671457 + ... + 8856671480.

It is an arithmetic number, because the mean of its divisors is an integer number (41331133522).

Almost surely, 2212560115244 is an apocalyptic number.

It is an amenable number.

212560115244 is an abundant number, since it is smaller than the sum of its proper divisors (283413487020).

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

212560115244 is a wasteful number, since it uses less digits than its factorization.

212560115244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17713342944 (or 17713342942 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 212560115244 in words is "two hundred twelve billion, five hundred sixty million, one hundred fifteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 17713342937 35426685874 53140028811 70853371748 106280057622 212560115244