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68441810 = 2543159167
BaseRepresentation
bin1000001010001…
…01011011010010
311202210012111212
410011011123102
5120010114220
610442540122
71460513543
oct405053322
9152705455
1068441810
11356a7388
121ab07642
1311244518
1491384ca
15601e0c5
hex41456d2

68441810 has 16 divisors (see below), whose sum is σ = 126061056. Its totient is φ = 26739888.

The previous prime is 68441803. The next prime is 68441839. The reversal of 68441810 is 1814486.

It is a super-2 number, since 2×684418102 = 9368562712152200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 79154 + ... + 80013.

It is an arithmetic number, because the mean of its divisors is an integer number (7878816).

Almost surely, 268441810 is an apocalyptic number.

68441810 is a deficient number, since it is larger than the sum of its proper divisors (57619246).

68441810 is a wasteful number, since it uses less digits than its factorization.

68441810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159217.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 68441810 is about 8272.9565452745. The cubic root of 68441810 is about 409.0475810602.

The spelling of 68441810 in words is "sixty-eight million, four hundred forty-one thousand, eight hundred ten".

Divisors: 1 2 5 10 43 86 215 430 159167 318334 795835 1591670 6844181 13688362 34220905 68441810