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68886786 = 2311481131
BaseRepresentation
bin1000001101100…
…10000100000010
311210121210220110
410012302010002
5120113334121
610500252150
71464346053
oct406620402
9153553813
1068886786
1135980731
121b0a1056
131136bc17
14921272a
1560aad76
hex41b2102

68886786 has 8 divisors (see below), whose sum is σ = 137773584. Its totient is φ = 22962260.

The previous prime is 68886773. The next prime is 68886791. The reversal of 68886786 is 68768886.

It is a sphenic number, since it is the product of 3 distinct primes.

68886786 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5740560 + ... + 5740571.

It is an arithmetic number, because the mean of its divisors is an integer number (17221698).

Almost surely, 268886786 is an apocalyptic number.

68886786 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68886786 is a wasteful number, since it uses less digits than its factorization.

68886786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11481136.

The product of its digits is 6193152, while the sum is 57.

The square root of 68886786 is about 8299.8063832839. The cubic root of 68886786 is about 409.9321442334.

The spelling of 68886786 in words is "sixty-eight million, eight hundred eighty-six thousand, seven hundred eighty-six".

Divisors: 1 2 3 6 11481131 22962262 34443393 68886786