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68086344 = 2335353527
BaseRepresentation
bin1000000111011…
…10101001001000
311202010010220110
410003232221020
5114412230334
610431154320
71454503314
oct403565110
9152103813
1068086344
1135484307
121a9759a0
131114b7a1
149084b44
155e9dae9
hex40eea48

68086344 has 32 divisors (see below), whose sum is σ = 173430720. Its totient is φ = 22266816.

The previous prime is 68086331. The next prime is 68086349. The reversal of 68086344 is 44368086.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68086349) 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 7 ways as a sum of consecutive naturals, for example, 25492 + ... + 28035.

It is an arithmetic number, because the mean of its divisors is an integer number (5419710).

Almost surely, 268086344 is an apocalyptic number.

It is an amenable number.

68086344 is an abundant number, since it is smaller than the sum of its proper divisors (105344376).

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

68086344 is a wasteful number, since it uses less digits than its factorization.

68086344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53589 (or 53585 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 68086344 is about 8251.4449643684. Note that the first 3 decimals coincide. The cubic root of 68086344 is about 408.3381951756.

The spelling of 68086344 in words is "sixty-eight million, eighty-six thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 53527 107054 160581 214108 321162 428216 642324 1284648 2836931 5673862 8510793 11347724 17021586 22695448 34043172 68086344