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68943232608 = 2536111773093
BaseRepresentation
bin100000000110101010…
…1100011111001100000
320120221202212002112120
41000031111203321200
52112143431420413
651401100424240
74660322544105
oct1001525437140
9216852762476
1068943232608
1127269726098
1211440b48080
1366695229c3
1434a052caac
151bd7969723
hex100d563e60

68943232608 has 48 divisors (see below), whose sum is σ = 183942820656. Its totient is φ = 22604336640.

The previous prime is 68943232601. The next prime is 68943232609. The reversal of 68943232608 is 80623234986.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68943232601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5880691 + ... + 5892402.

It is an arithmetic number, because the mean of its divisors is an integer number (3832142097).

Almost surely, 268943232608 is an apocalyptic number.

It is an amenable number.

68943232608 is an abundant number, since it is smaller than the sum of its proper divisors (114999588048).

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

68943232608 is a wasteful number, since it uses less digits than its factorization.

68943232608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11773167 (or 11773159 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 68943232608 in words is "sixty-eight billion, nine hundred forty-three million, two hundred thirty-two thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 61 96 122 183 244 366 488 732 976 1464 1952 2928 5856 11773093 23546186 35319279 47092372 70638558 94184744 141277116 188369488 282554232 376738976 565108464 718158673 1130216928 1436317346 2154476019 2872634692 4308952038 5745269384 8617904076 11490538768 17235808152 22981077536 34471616304 68943232608