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68626828 = 2222437649
BaseRepresentation
bin1000001011100…
…10100110001100
311210010121022101
410011302212030
5120032024303
610450524444
71462214134
oct405624614
9153117271
1068626828
1135813396
121ab96724
13112aa7ba
149185ac4
156058d1d
hex417298c

68626828 has 12 divisors (see below), whose sum is σ = 120166200. Its totient is φ = 34293632.

The previous prime is 68626819. The next prime is 68626829. The reversal of 68626828 is 82862686.

It is not an unprimeable number, because it can be changed into a prime (68626829) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5148 + ... + 12796.

It is an arithmetic number, because the mean of its divisors is an integer number (10013850).

Almost surely, 268626828 is an apocalyptic number.

It is an amenable number.

68626828 is a deficient number, since it is larger than the sum of its proper divisors (51539372).

68626828 is a wasteful number, since it uses less digits than its factorization.

68626828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9896 (or 9894 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 68626828 is about 8284.1310950516. The cubic root of 68626828 is about 409.4158407130.

The spelling of 68626828 in words is "sixty-eight million, six hundred twenty-six thousand, eight hundred twenty-eight".

Divisors: 1 2 4 2243 4486 7649 8972 15298 30596 17156707 34313414 68626828