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13231341320 = 235714658923
BaseRepresentation
bin11000101001010011…
…00011111100001000
31021011010002210002112
430110221203330020
5204044210410240
610024533321452
7645612355061
oct142451437410
937133083075
1013231341320
11567a82462a
122693196288
13132b2b0662
148d7389568
155268ec665
hex314a63f08

13231341320 has 32 divisors (see below), whose sum is σ = 30189827520. Its totient is φ = 5217992640.

The previous prime is 13231341301. The next prime is 13231341341. The reversal of 13231341320 is 2314313231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326622 + ... + 2332301.

It is an arithmetic number, because the mean of its divisors is an integer number (943432110).

Almost surely, 213231341320 is an apocalyptic number.

13231341320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231341320 is an abundant number, since it is smaller than the sum of its proper divisors (16958486200).

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

13231341320 is a wasteful number, since it uses less digits than its factorization.

13231341320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659005 (or 4659001 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13231341320 its reverse (2314313231), we get a palindrome (15545654551).

The spelling of 13231341320 in words is "thirteen billion, two hundred thirty-one million, three hundred forty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 4658923 9317846 18635692 23294615 37271384 46589230 93178460 186356920 330783533 661567066 1323134132 1653917665 2646268264 3307835330 6615670660 13231341320