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8723120068 = 2213686324443
BaseRepresentation
bin10000001111111000…
…00011111111000100
3211111221002102011001
420013330003333010
5120331104320233
64001330423044
7426111203635
oct100774037704
924457072131
108723120068
113776a79243
121835431a84
13a902b8b10
145ca73d88c
15360c3827d
hex207f03fc4

8723120068 has 24 divisors (see below), whose sum is σ = 16442794368. Its totient is φ = 4025304096.

The previous prime is 8723120023. The next prime is 8723120069. The reversal of 8723120068 is 8600213278.

8723120068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (8723120069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344655 + ... + 369097.

It is an arithmetic number, because the mean of its divisors is an integer number (685116432).

Almost surely, 28723120068 is an apocalyptic number.

It is an amenable number.

8723120068 is a deficient number, since it is larger than the sum of its proper divisors (7719674300).

8723120068 is a wasteful number, since it uses less digits than its factorization.

8723120068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31323 (or 31321 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 8723120068 is about 93397.6448739474. The cubic root of 8723120068 is about 2058.5303927441.

The spelling of 8723120068 in words is "eight billion, seven hundred twenty-three million, one hundred twenty thousand, sixty-eight".

Divisors: 1 2 4 13 26 52 6863 13726 24443 27452 48886 89219 97772 178438 317759 356876 635518 1271036 167752309 335504618 671009236 2180780017 4361560034 8723120068