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2112200052 = 223176016671
BaseRepresentation
bin111110111100101…
…1001110101110100
312110012110212202120
41331321121311310
513311210400202
6545331435540
7103225255434
oct17571316564
95405425676
102112200052
11994311186
124ab455bb0
1327879cc21
141607442c4
15c56770bc
hex7de59d74

2112200052 has 12 divisors (see below), whose sum is σ = 4928466816. Its totient is φ = 704066680.

The previous prime is 2112200021. The next prime is 2112200053. The reversal of 2112200052 is 2500022112.

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

It is a super-2 number, since 2×21122000522 = 8922778119337605408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88008324 + ... + 88008347.

It is an arithmetic number, because the mean of its divisors is an integer number (410705568).

Almost surely, 22112200052 is an apocalyptic number.

It is an amenable number.

2112200052 is an abundant number, since it is smaller than the sum of its proper divisors (2816266764).

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

2112200052 is a wasteful number, since it uses less digits than its factorization.

2112200052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176016678 (or 176016676 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2112200052 is about 45958.6776572172. The cubic root of 2112200052 is about 1283.0542404200.

Adding to 2112200052 its reverse (2500022112), we get a palindrome (4612222164).

The spelling of 2112200052 in words is "two billion, one hundred twelve million, two hundred thousand, fifty-two".

Divisors: 1 2 3 4 6 12 176016671 352033342 528050013 704066684 1056100026 2112200052