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2012211204 = 223167684267
BaseRepresentation
bin111011111101111…
…1110100000000100
312012020022220211220
41313323332200010
513110111224304
6531400400340
7100602340653
oct16773764004
95166286756
102012211204
11942928073
12481a760b0
13260b61523
1415135719a
15bb9c5ad9
hex77efe804

2012211204 has 12 divisors (see below), whose sum is σ = 4695159504. Its totient is φ = 670737064.

The previous prime is 2012211203. The next prime is 2012211211. The reversal of 2012211204 is 4021122102.

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

It is not an unprimeable number, because it can be changed into a prime (2012211203) 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, 83842122 + ... + 83842145.

It is an arithmetic number, because the mean of its divisors is an integer number (391263292).

Almost surely, 22012211204 is an apocalyptic number.

It is an amenable number.

2012211204 is an abundant number, since it is smaller than the sum of its proper divisors (2682948300).

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

2012211204 is a wasteful number, since it uses less digits than its factorization.

2012211204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167684274 (or 167684272 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2012211204 is about 44857.6772024589. The cubic root of 2012211204 is about 1262.4800410399.

Adding to 2012211204 its reverse (4021122102), we get a palindrome (6033333306).

The spelling of 2012211204 in words is "two billion, twelve million, two hundred eleven thousand, two hundred four".

Divisors: 1 2 3 4 6 12 167684267 335368534 503052801 670737068 1006105602 2012211204