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52055122212 = 22321445975617
BaseRepresentation
bin110000011110101110…
…100010000100100100
311222100210220012022100
4300132232202010210
51323102102402322
635525213532100
73521655144462
oct603656420444
9158323805270
1052055122212
1120092839865
12a1091a4030
134ba7776a82
14273b657832
151549ee4dac
hexc1eba2124

52055122212 has 18 divisors (see below), whose sum is σ = 131583781238. Its totient is φ = 17351707392.

The previous prime is 52055122211. The next prime is 52055122243. The reversal of 52055122212 is 21222155025.

It is a happy number.

52055122212 is a `hidden beast` number, since 520 + 5 + 5 + 122 + 2 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37975875876 + 14079246336 = 194874^2 + 118656^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (52055122211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722987773 + ... + 722987844.

Almost surely, 252055122212 is an apocalyptic number.

It is an amenable number.

52055122212 is an abundant number, since it is smaller than the sum of its proper divisors (79528659026).

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

52055122212 is a wasteful number, since it uses less digits than its factorization.

52055122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445975627 (or 1445975622 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 52055122212 its reverse (21222155025), we get a palindrome (73277277237).

The spelling of 52055122212 in words is "fifty-two billion, fifty-five million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1445975617 2891951234 4337926851 5783902468 8675853702 13013780553 17351707404 26027561106 52055122212