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68960128 = 27538751
BaseRepresentation
bin1000001110000…
…11111110000000
311210202112111211
410013003332000
5120123211003
610502015504
71465102636
oct407037600
9153675454
1068960128
1135a20846
121b117594
1311396413
149231356
1560c296d
hex41c3f80

68960128 has 16 divisors (see below), whose sum is σ = 137381760. Its totient is φ = 34480000.

The previous prime is 68960123. The next prime is 68960149. The reversal of 68960128 is 82106986.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68960123) 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 as a sum of consecutive naturals, namely, 269248 + ... + 269503.

It is an arithmetic number, because the mean of its divisors is an integer number (8586360).

Almost surely, 268960128 is an apocalyptic number.

It is an amenable number.

68960128 is a deficient number, since it is larger than the sum of its proper divisors (68421632).

68960128 is an equidigital number, since it uses as much as digits as its factorization.

68960128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538765 (or 538753 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 68960128 is about 8304.2235037359. The cubic root of 68960128 is about 410.0775740585.

The spelling of 68960128 in words is "sixty-eight million, nine hundred sixty thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 128 538751 1077502 2155004 4310008 8620016 17240032 34480064 68960128