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13111144002 = 2331122006603
BaseRepresentation
bin11000011010111110…
…00010111001000010
31020211201221010101000
430031133002321002
5203322423102002
610005001152430
7642622612425
oct141537027102
936751833330
1013111144002
115618998600
12265aa8b716
13130c417998
148c541b9bc
1551b0a861c
hex30d7c2e42

13111144002 has 48 divisors (see below), whose sum is σ = 32025399840. Its totient is φ = 3973071960.

The previous prime is 13111143989. The next prime is 13111144019. The reversal of 13111144002 is 20044111131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996768 + ... + 1009835.

It is an arithmetic number, because the mean of its divisors is an integer number (667195830).

Almost surely, 213111144002 is an apocalyptic number.

13111144002 is an abundant number, since it is smaller than the sum of its proper divisors (18914255838).

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

13111144002 is a wasteful number, since it uses less digits than its factorization.

13111144002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006636 (or 2006619 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13111144002 its reverse (20044111131), we get a palindrome (33155255133).

The spelling of 13111144002 in words is "thirteen billion, one hundred eleven million, one hundred forty-four thousand, two".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 121 198 242 297 363 594 726 1089 2178 3267 6534 2006603 4013206 6019809 12039618 18059427 22072633 36118854 44145266 54178281 66217899 108356562 132435798 198653697 242798963 397307394 485597926 595961091 728396889 1191922182 1456793778 2185190667 4370381334 6555572001 13111144002