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13111764159 = 313509660509
BaseRepresentation
bin11000011011000010…
…11010010010111111
31020211210002122001210
430031201122102333
5203323102423114
610005022335503
7642631104444
oct141541322277
936753078053
1013111764159
11561928152a
12265b12a593
13130c5a4040
148c553d9cb
1551b17c259
hex30d85a4bf

13111764159 has 16 divisors (see below), whose sum is σ = 18864165600. Its totient is φ = 8052913536.

The previous prime is 13111764157. The next prime is 13111764161. The reversal of 13111764159 is 95146711131.

It is an interprime number because it is at equal distance from previous prime (13111764157) and next prime (13111764161).

It is not a de Polignac number, because 13111764159 - 21 = 13111764157 is a prime.

It is a super-2 number, since 2×131117641592 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111764157) 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, 310404 + ... + 350105.

It is an arithmetic number, because the mean of its divisors is an integer number (1179010350).

Almost surely, 213111764159 is an apocalyptic number.

13111764159 is a deficient number, since it is larger than the sum of its proper divisors (5752401441).

13111764159 is a wasteful number, since it uses less digits than its factorization.

13111764159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661034.

The product of its digits is 22680, while the sum is 39.

The spelling of 13111764159 in words is "thirteen billion, one hundred eleven million, seven hundred sixty-four thousand, one hundred fifty-nine".

Divisors: 1 3 13 39 509 1527 6617 19851 660509 1981527 8586617 25759851 336199081 1008597243 4370588053 13111764159