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12838271740 = 225791701941
BaseRepresentation
bin10111111010011100…
…00111101011111100
31020010201110202222221
423331032013223330
5202243044143430
65521532415124
7633100336450
oct137516075374
936121422887
1012838271740
115498962638
1225a36174a4
131297a276c8
1489b0aa660
1550215757a
hex2fd387afc

12838271740 has 24 divisors (see below), whose sum is σ = 30811852512. Its totient is φ = 4401693120.

The previous prime is 12838271687. The next prime is 12838271741. The reversal of 12838271740 is 4717283821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838271741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45850831 + ... + 45851110.

It is an arithmetic number, because the mean of its divisors is an integer number (1283827188).

Almost surely, 212838271740 is an apocalyptic number.

12838271740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12838271740 is an abundant number, since it is smaller than the sum of its proper divisors (17973580772).

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

12838271740 is a wasteful number, since it uses less digits than its factorization.

12838271740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91701957 (or 91701955 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 12838271740 in words is "twelve billion, eight hundred thirty-eight million, two hundred seventy-one thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 91701941 183403882 366807764 458509705 641913587 917019410 1283827174 1834038820 2567654348 3209567935 6419135870 12838271740