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10863688881 = 319437751
BaseRepresentation
bin10100001111000011…
…01011110010110001
31001001002221120112110
422013201223302301
5134222101021011
64553554315533
7533132555223
oct120741536261
931032846473
1010863688881
1146752a6281
122132288ba9
13104190c396
14750b4a413
15438b15ba6
hex28786bcb1

10863688881 has 40 divisors (see below), whose sum is σ = 15723772544. Its totient is φ = 6666948000.

The previous prime is 10863688867. The next prime is 10863688889. The reversal of 10863688881 is 18888636801.

10863688881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10863688881 - 26 = 10863688817 is a prime.

It is a super-2 number, since 2×108636888812 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (10863688889) 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 39 ways as a sum of consecutive naturals, for example, 14465256 + ... + 14466006.

Almost surely, 210863688881 is an apocalyptic number.

It is an amenable number.

10863688881 is a deficient number, since it is larger than the sum of its proper divisors (4860083663).

10863688881 is an frugal number, since it uses more digits than its factorization.

10863688881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 57.

The spelling of 10863688881 in words is "ten billion, eight hundred sixty-three million, six hundred eighty-eight thousand, eight hundred eighty-one".

Divisors: 1 3 19 37 57 111 361 703 751 1083 2109 2253 6859 13357 14269 20577 27787 40071 42807 83361 130321 253783 271111 390963 527953 761349 813333 1583859 4821877 5151109 10031107 14465631 15453327 30093321 97871071 190591033 293613213 571773099 3621229627 10863688881