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13381800366 = 2311509398339
BaseRepresentation
bin11000111011001111…
…00001000110101110
31021112121012220002210
430131213201012232
5204401220102431
610051510231250
7652420266144
oct143547410656
937477186083
1013381800366
11574774a750
122715655526
13135351048c
1490d353594
15534c1cd46
hex31d9e11ae

13381800366 has 32 divisors (see below), whose sum is σ = 29254089600. Its totient is φ = 4047114080.

The previous prime is 13381800353. The next prime is 13381800391. The reversal of 13381800366 is 66300818331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165576 + ... + 232763.

It is an arithmetic number, because the mean of its divisors is an integer number (914190300).

Almost surely, 213381800366 is an apocalyptic number.

13381800366 is an abundant number, since it is smaller than the sum of its proper divisors (15872289234).

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

13381800366 is a wasteful number, since it uses less digits than its factorization.

13381800366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398864.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 13381800366 in words is "thirteen billion, three hundred eighty-one million, eight hundred thousand, three hundred sixty-six".

Divisors: 1 2 3 6 11 22 33 66 509 1018 1527 3054 5599 11198 16797 33594 398339 796678 1195017 2390034 4381729 8763458 13145187 26290374 202754551 405509102 608263653 1216527306 2230300061 4460600122 6690900183 13381800366