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2013155340 = 223574793227
BaseRepresentation
bin111011111111110…
…0101000000001100
312012022002212221220
41313333211000030
513110331432330
6531432523340
7100613352360
oct16777450014
95168085856
102013155340
11943412449
12482250550
132611021a1
141515212a0
15bbb10710
hex77fe500c

2013155340 has 48 divisors (see below), whose sum is σ = 6442098432. Its totient is φ = 460149696.

The previous prime is 2013155303. The next prime is 2013155357. The reversal of 2013155340 is 435513102.

It is a self number, because there is not a number n which added to its sum of digits gives 2013155340.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2396194 + ... + 2397033.

It is an arithmetic number, because the mean of its divisors is an integer number (134210384).

Almost surely, 22013155340 is an apocalyptic number.

2013155340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013155340 is an abundant number, since it is smaller than the sum of its proper divisors (4428943092).

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

2013155340 is a wasteful number, since it uses less digits than its factorization.

2013155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793246 (or 4793244 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2013155340 is about 44868.1996518693. The cubic root of 2013155340 is about 1262.6774634045.

Adding to 2013155340 its reverse (435513102), we get a palindrome (2448668442).

The spelling of 2013155340 in words is "two billion, thirteen million, one hundred fifty-five thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4793227 9586454 14379681 19172908 23966135 28759362 33552589 47932270 57518724 67105178 71898405 95864540 100657767 134210356 143796810 167762945 201315534 287593620 335525890 402631068 503288835 671051780 1006577670 2013155340