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2013511388 = 227211340811
BaseRepresentation
bin111100000000011…
…1011111011011100
312012022202222100212
41320000323323130
513110424331023
6531444311552
7100616364410
oct17000737334
95168688325
102013511388
119436359a9
124823a25b8
132611c8275
141515b4d40
15bbb80e78
hex7803bedc

2013511388 has 24 divisors (see below), whose sum is σ = 4046120064. Its totient is φ = 858841200.

The previous prime is 2013511387. The next prime is 2013511391. The reversal of 2013511388 is 8831153102.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013511387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164498 + ... + 176313.

It is an arithmetic number, because the mean of its divisors is an integer number (168588336).

Almost surely, 22013511388 is an apocalyptic number.

2013511388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2013511388 is an abundant number, since it is smaller than the sum of its proper divisors (2032608676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013511388 is a wasteful number, since it uses less digits than its factorization.

2013511388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341033 (or 341031 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 2013511388 is about 44872.1671863528. The cubic root of 2013511388 is about 1262.7518983434.

The spelling of 2013511388 in words is "two billion, thirteen million, five hundred eleven thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 211 422 844 1477 2954 5908 340811 681622 1363244 2385677 4771354 9542708 71911121 143822242 287644484 503377847 1006755694 2013511388