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68382816 = 253712321
BaseRepresentation
bin1000001001101…
…11000001100000
311202200012120220
410010313001200
5120001222231
610441403040
71460146545
oct404670140
9152605526
1068382816
1135667027
121aa99480
1311223708
149120bcc
15600b896
hex4137060

68382816 has 24 divisors (see below), whose sum is σ = 179505144. Its totient is φ = 22794240.

The previous prime is 68382803. The next prime is 68382827. The reversal of 68382816 is 61828386.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356065 + ... + 356256.

It is an arithmetic number, because the mean of its divisors is an integer number (7479381).

Almost surely, 268382816 is an apocalyptic number.

It is an amenable number.

68382816 is an abundant number, since it is smaller than the sum of its proper divisors (111122328).

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

68382816 is a wasteful number, since it uses less digits than its factorization.

68382816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712334 (or 712326 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 68382816 is about 8269.3903040067. The cubic root of 68382816 is about 408.9300199295.

The spelling of 68382816 in words is "sixty-eight million, three hundred eighty-two thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 712321 1424642 2136963 2849284 4273926 5698568 8547852 11397136 17095704 22794272 34191408 68382816