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12780667110 = 2351921180117
BaseRepresentation
bin10111110011100100…
…11000000011100110
31012222201002011022010
423321302120003212
5202133322321420
65512114015050
7631500610101
oct137162300346
935881064263
1012780667110
115469398402
122588277486
131288b08b23
14893593738
154ec0794e0
hex2f9c980e6

12780667110 has 48 divisors (see below), whose sum is σ = 32372996976. Its totient is φ = 3228797376.

The previous prime is 12780667087. The next prime is 12780667121. The reversal of 12780667110 is 1176608721.

12780667110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 579229 + ... + 600888.

It is an arithmetic number, because the mean of its divisors is an integer number (674437437).

Almost surely, 212780667110 is an apocalyptic number.

12780667110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12780667110 is an abundant number, since it is smaller than the sum of its proper divisors (19592329866).

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

12780667110 is a wasteful number, since it uses less digits than its factorization.

12780667110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180165 (or 1180146 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 12780667110 in words is "twelve billion, seven hundred eighty million, six hundred sixty-seven thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 361 570 722 1083 1805 2166 3610 5415 10830 1180117 2360234 3540351 5900585 7080702 11801170 17701755 22422223 35403510 44844446 67266669 112111115 134533338 224222230 336333345 426022237 672666690 852044474 1278066711 2130111185 2556133422 4260222370 6390333555 12780667110