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12762784830016 = 26132343512
BaseRepresentation
bin1011100110111001000101…
…0000011001001001000000
31200012002222102022022220001
42321232101100121021000
53133101140404030031
643051050432125344
72455036464050464
oct271562120311100
950162872268801
1012762784830016
114080737347571
12152161a996854
137176aa532100
14321a1756c4a4
15171ec8e6a861
hexb9b91419240

12762784830016 has 63 divisors (see below), whose sum is σ = 27424973877273. Its totient is φ = 5890344595200.

The previous prime is 12762784830013. The next prime is 12762784830031. The reversal of 12762784830016 is 61003848726721.

The square root of 12762784830016 is 3572504.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1887985921600 + 10874798908416 = 1374040^2 + 3297696^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12762784830013) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 371523241 + ... + 371557591.

It is an arithmetic number, because the mean of its divisors is an integer number (435317045671).

Almost surely, 212762784830016 is an apocalyptic number.

12762784830016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12762784830016 is the 3572504-th square number.

It is an amenable number.

12762784830016 is an abundant number, since it is smaller than the sum of its proper divisors (14662189047257).

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

12762784830016 is an frugal number, since it uses more digits than its factorization.

12762784830016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68740 (or 34366 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 12762784830016 in words is "twelve trillion, seven hundred sixty-two billion, seven hundred eighty-four million, eight hundred thirty thousand, sixteen".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 169 208 338 416 676 832 1352 2704 5408 10816 34351 68702 137404 274808 446563 549616 893126 1099232 1786252 2198464 3572504 5805319 7145008 11610638 14290016 23221276 28580032 46442552 92885104 185770208 371540416 1179991201 2359982402 4719964804 9439929608 15339885613 18879859216 30679771226 37759718432 61359542452 75519436864 122719084904 199418512969 245438169808 398837025938 490876339616 797674051876 981752679232 1595348103752 3190696207504 6381392415008 12762784830016