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68675340 = 22351144589
BaseRepresentation
bin1000001011111…
…10011100001100
311210020001212010
410011332130030
5120040102330
610451541220
71462505436
oct405763414
9153201763
1068675340
1135846888
121abba810
13112c68c6
149199656
1560683b0
hex417e70c

68675340 has 24 divisors (see below), whose sum is σ = 192291120. Its totient is φ = 18313408.

The previous prime is 68675339. The next prime is 68675363. The reversal of 68675340 is 4357686.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572235 + ... + 572354.

It is an arithmetic number, because the mean of its divisors is an integer number (8012130).

Almost surely, 268675340 is an apocalyptic number.

68675340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68675340 is an abundant number, since it is smaller than the sum of its proper divisors (123615780).

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

68675340 is a wasteful number, since it uses less digits than its factorization.

68675340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144601 (or 1144599 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 68675340 is about 8287.0585855296. The cubic root of 68675340 is about 409.5122894035.

The spelling of 68675340 in words is "sixty-eight million, six hundred seventy-five thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1144589 2289178 3433767 4578356 5722945 6867534 11445890 13735068 17168835 22891780 34337670 68675340