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12798074940 = 2235730471607
BaseRepresentation
bin10111110101101001…
…10010000000111100
31020000220211120100120
423322310302000330
5202202301344230
65513535054540
7632101561560
oct137264620074
936026746316
1012798074940
1154781a8142
122592071450
13128c5c2411
14895a056a0
154ed867310
hex2fad3203c

12798074940 has 48 divisors (see below), whose sum is σ = 40953841152. Its totient is φ = 2925274176.

The previous prime is 12798074923. The next prime is 12798074951. The reversal of 12798074940 is 4947089721.

12798074940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15235384 + ... + 15236223.

It is an arithmetic number, because the mean of its divisors is an integer number (853205024).

Almost surely, 212798074940 is an apocalyptic number.

12798074940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12798074940 is an abundant number, since it is smaller than the sum of its proper divisors (28155766212).

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

12798074940 is a wasteful number, since it uses less digits than its factorization.

12798074940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30471626 (or 30471624 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 12798074940 in words is "twelve billion, seven hundred ninety-eight million, seventy-four thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 30471607 60943214 91414821 121886428 152358035 182829642 213301249 304716070 365659284 426602498 457074105 609432140 639903747 853204996 914148210 1066506245 1279807494 1828296420 2133012490 2559614988 3199518735 4266024980 6399037470 12798074940