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6868865 = 537107347
BaseRepresentation
bin11010001100111110000001
3110220222022102
4122030332001
53224300430
6403120145
7112245563
oct32147601
913828272
106868865
113971753
122373055
131566623
14cab333
1590a345
hex68cf81

6868865 has 16 divisors (see below), whose sum is σ = 8569152. Its totient is φ = 5281344.

The previous prime is 6868859. The next prime is 6868871. The reversal of 6868865 is 5688686.

It is an interprime number because it is at equal distance from previous prime (6868859) and next prime (6868871).

It is a cyclic number.

It is not a de Polignac number, because 6868865 - 26 = 6868801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19622 + ... + 19968.

It is an arithmetic number, because the mean of its divisors is an integer number (535572).

Almost surely, 26868865 is an apocalyptic number.

It is an amenable number.

6868865 is a deficient number, since it is larger than the sum of its proper divisors (1700287).

6868865 is a wasteful number, since it uses less digits than its factorization.

6868865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 552960, while the sum is 47.

The square root of 6868865 is about 2620.8519607181. The cubic root of 6868865 is about 190.0910459308.

The spelling of 6868865 in words is "six million, eight hundred sixty-eight thousand, eight hundred sixty-five".

Divisors: 1 5 37 107 185 347 535 1735 3959 12839 19795 37129 64195 185645 1373773 6868865