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2012052217 = 7287436031
BaseRepresentation
bin111011111101101…
…0111101011111001
312012020000211202111
41313323113223321
513110041132332
6531353132321
7100601106310
oct16773275371
95166024674
102012052217
1194282967a
124819ba0a1
13260b07056
14151315277
15bb993947
hex77ed7af9

2012052217 has 4 divisors (see below), whose sum is σ = 2299488256. Its totient is φ = 1724616180.

The previous prime is 2012052191. The next prime is 2012052223. The reversal of 2012052217 is 7122502102.

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 not a de Polignac number, because 2012052217 - 27 = 2012052089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012052227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143718009 + ... + 143718022.

It is an arithmetic number, because the mean of its divisors is an integer number (574872064).

Almost surely, 22012052217 is an apocalyptic number.

It is an amenable number.

2012052217 is a deficient number, since it is larger than the sum of its proper divisors (287436039).

2012052217 is an equidigital number, since it uses as much as digits as its factorization.

2012052217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287436038.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 2012052217 is about 44855.9050404738. The cubic root of 2012052217 is about 1262.4467901895.

Adding to 2012052217 its reverse (7122502102), we get a palindrome (9134554319).

The spelling of 2012052217 in words is "two billion, twelve million, fifty-two thousand, two hundred seventeen".

Divisors: 1 7 287436031 2012052217