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13531155311 = 193136762597
BaseRepresentation
bin11001001101000010…
…10000101101101111
31021221000020220120102
430212201100231233
5210202433432221
610114403341315
7656212631252
oct144641205557
937830226512
1013531155311
115813a91293
12275768183b
13137844489b
14925111099
15542dc130b
hex326850b6f

13531155311 has 16 divisors (see below), whose sum is σ = 14743080960. Its totient is φ = 12371473440.

The previous prime is 13531155289. The next prime is 13531155331. The reversal of 13531155311 is 11355113531.

13531155311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13531155311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531155331) 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 15 ways as a sum of consecutive naturals, for example, 184865 + ... + 247461.

It is an arithmetic number, because the mean of its divisors is an integer number (921442560).

Almost surely, 213531155311 is an apocalyptic number.

13531155311 is a deficient number, since it is larger than the sum of its proper divisors (1211925649).

13531155311 is a wasteful number, since it uses less digits than its factorization.

13531155311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63014.

The product of its digits is 3375, while the sum is 29.

Adding to 13531155311 its reverse (11355113531), we get a palindrome (24886268842).

The spelling of 13531155311 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-five thousand, three hundred eleven".

Divisors: 1 19 31 367 589 6973 11377 62597 216163 1189343 1940507 22973099 36869633 436488881 712166069 13531155311