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2013032123 = 3049660227
BaseRepresentation
bin111011111111100…
…0110111010111011
312012021212121221022
41313333012322323
513110314011443
6531430133055
7100612330214
oct16777067273
95167777838
102013032123
11943338913
124821b118b
1326108b08b
141514cc40b
15bbad8e68
hex77fc6ebb

2013032123 has 4 divisors (see below), whose sum is σ = 2013695400. Its totient is φ = 2012368848.

The previous prime is 2013032081. The next prime is 2013032149. The reversal of 2013032123 is 3212303102.

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 2013032123 - 212 = 2013028027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013032183) 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, 327065 + ... + 333162.

It is an arithmetic number, because the mean of its divisors is an integer number (503423850).

Almost surely, 22013032123 is an apocalyptic number.

2013032123 is a deficient number, since it is larger than the sum of its proper divisors (663277).

2013032123 is an equidigital number, since it uses as much as digits as its factorization.

2013032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663276.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2013032123 is about 44866.8265314141. The cubic root of 2013032123 is about 1262.6517017721.

Adding to 2013032123 its reverse (3212303102), we get a palindrome (5225335225).

The spelling of 2013032123 in words is "two billion, thirteen million, thirty-two thousand, one hundred twenty-three".

Divisors: 1 3049 660227 2013032123