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2012122013 = 11182920183
BaseRepresentation
bin111011111101110…
…1000101110011101
312012020011101111112
41313323220232131
513110100401023
6531354431405
7100601516636
oct16773505635
95166141445
102012122013
11942877060
12481a32565
13260b2ca55
1415133288d
15bb9a9478
hex77ee8b9d

2012122013 has 4 divisors (see below), whose sum is σ = 2195042208. Its totient is φ = 1829201820.

The previous prime is 2012122003. The next prime is 2012122031. The reversal of 2012122013 is 3102212102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012122013 - 216 = 2012056477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012122003) 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, 91460081 + ... + 91460102.

It is an arithmetic number, because the mean of its divisors is an integer number (548760552).

Almost surely, 22012122013 is an apocalyptic number.

It is an amenable number.

2012122013 is a deficient number, since it is larger than the sum of its proper divisors (182920195).

2012122013 is a wasteful number, since it uses less digits than its factorization.

2012122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182920194.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012122013 is about 44856.6830360873. The cubic root of 2012122013 is about 1262.4613876764.

Adding to 2012122013 its reverse (3102212102), we get a palindrome (5114334115).

The spelling of 2012122013 in words is "two billion, twelve million, one hundred twenty-two thousand, thirteen".

Divisors: 1 11 182920183 2012122013