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968889988869 = 311171727076629
BaseRepresentation
bin11100001100101100101…
…01111111011100000101
310102121212121110010002120
432012112111333130011
5111333241314120434
62021034003000153
7126666666010065
oct16062625773405
93377777403076
10968889988869
113439a415a0a0
1213793b369059
137049ac5912a
1434c748153a5
151a30a47a349
hexe19657f705

968889988869 has 16 divisors (see below), whose sum is σ = 1492194208320. Its totient is φ = 552664520960.

The previous prime is 968889988867. The next prime is 968889988883.

968889988869 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 968889988869 - 21 = 968889988867 is a prime.

It is a super-2 number, since 2×9688899888692 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968889988867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863537754 + ... + 863538875.

It is an arithmetic number, because the mean of its divisors is an integer number (93262138020).

Almost surely, 2968889988869 is an apocalyptic number.

It is an amenable number.

968889988869 is a deficient number, since it is larger than the sum of its proper divisors (523304219451).

968889988869 is a wasteful number, since it uses less digits than its factorization.

968889988869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727076660.

The product of its digits is 61917364224, while the sum is 96.

The spelling of 968889988869 in words is "nine hundred sixty-eight billion, eight hundred eighty-nine million, nine hundred eighty-eight thousand, eight hundred sixty-nine".

Divisors: 1 3 11 17 33 51 187 561 1727076629 5181229887 18997842919 29360302693 56993528757 88080908079 322963329623 968889988869