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2013055987 = 5934119593
BaseRepresentation
bin111011111111100…
…1100101111110011
312012021220211200011
41313333030233303
513110320242422
6531430435351
7100612456615
oct16777145763
95167824604
102013055987
11943354838
12482202b57
13261098bb7
141514d6db5
15bbae1077
hex77fccbf3

2013055987 has 4 divisors (see below), whose sum is σ = 2047175640. Its totient is φ = 1978936336.

The previous prime is 2013055903. The next prime is 2013055991. The reversal of 2013055987 is 7895503102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2013055987 - 27 = 2013055859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013055997) 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, 17059738 + ... + 17059855.

It is an arithmetic number, because the mean of its divisors is an integer number (511793910).

Almost surely, 22013055987 is an apocalyptic number.

2013055987 is a deficient number, since it is larger than the sum of its proper divisors (34119653).

2013055987 is an equidigital number, since it uses as much as digits as its factorization.

2013055987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34119652.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2013055987 is about 44867.0924732147. The cubic root of 2013055987 is about 1262.6566912274.

The spelling of 2013055987 in words is "two billion, thirteen million, fifty-five thousand, nine hundred eighty-seven".

Divisors: 1 59 34119593 2013055987