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2012113311 = 313311664279
BaseRepresentation
bin111011111101110…
…0110100110011111
312012020010221120020
41313323212212133
513110100111221
6531354323223
7100601452365
oct16773464637
95166127506
102012113311
1194287056a
12481a29513
13260b28ac0
1415132d635
15bb9a6ac6
hex77ee699f

2012113311 has 16 divisors (see below), whose sum is σ = 2982389760. Its totient is φ = 1198280160.

The previous prime is 2012113297. The next prime is 2012113321. The reversal of 2012113311 is 1133112102.

It is a happy number.

It is not a de Polignac number, because 2012113311 - 217 = 2011982239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012113321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830931 + ... + 833348.

It is an arithmetic number, because the mean of its divisors is an integer number (186399360).

Almost surely, 22012113311 is an apocalyptic number.

2012113311 is a deficient number, since it is larger than the sum of its proper divisors (970276449).

2012113311 is a wasteful number, since it uses less digits than its factorization.

2012113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664326.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2012113311 is about 44856.5860381728. The cubic root of 2012113311 is about 1262.4595677147.

Adding to 2012113311 its reverse (1133112102), we get a palindrome (3145225413).

The spelling of 2012113311 in words is "two billion, twelve million, one hundred thirteen thousand, three hundred eleven".

Divisors: 1 3 13 31 39 93 403 1209 1664279 4992837 21635627 51592649 64906881 154777947 670704437 2012113311