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13015235013 = 31167101167349
BaseRepresentation
bin11000001111100010…
…01011100111000101
31020121001110102222020
430013301023213011
5203123400010023
65551253353353
7640346446404
oct140761134705
936531412866
1013015235013
115579840780
122632938859
1312c55a72c1
148b67b363b
15512960de3
hex307c4b9c5

13015235013 has 64 divisors (see below), whose sum is σ = 19576166400. Its totient is φ = 7625376000.

The previous prime is 13015234997. The next prime is 13015235039. The reversal of 13015235013 is 31053251031.

13015235013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13015235013 - 24 = 13015234997 is a prime.

It is a super-2 number, since 2×130152350132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13015235113) 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 63 ways as a sum of consecutive naturals, for example, 37292763 + ... + 37293111.

It is an arithmetic number, because the mean of its divisors is an integer number (305877600).

Almost surely, 213015235013 is an apocalyptic number.

It is an amenable number.

13015235013 is a deficient number, since it is larger than the sum of its proper divisors (6560931387).

13015235013 is a wasteful number, since it uses less digits than its factorization.

13015235013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698.

The product of its (nonzero) digits is 1350, while the sum is 24.

Adding to 13015235013 its reverse (31053251031), we get a palindrome (44068486044).

It can be divided in two parts, 1301523 and 5013, that added together give a triangular number (1306536 = T1616).

The spelling of 13015235013 in words is "thirteen billion, fifteen million, two hundred thirty-five thousand, thirteen".

Divisors: 1 3 11 33 67 101 167 201 303 349 501 737 1047 1111 1837 2211 3333 3839 5511 6767 11189 11517 16867 20301 23383 33567 35249 50601 58283 70149 74437 105747 123079 174849 185537 223311 257213 369237 387739 556611 641113 771639 1130089 1163217 1923339 2361683 3390267 3904961 5886583 7085049 11714883 12430979 17659749 25978513 37292937 42954571 64752413 77935539 128863713 194257239 394401061 1183203183 4338411671 13015235013