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68843454468 = 22310335553683
BaseRepresentation
bin100000000011101100…
…0111100000000000100
320120200211002211122220
41000013120330000010
52111442411020333
651343134052340
74655001464535
oct1000730740004
9216624084586
1068843454468
1127218376318
121141364a0b0
136651959199
14349119868c
151bcdd0a8b3
hex100763c004

68843454468 has 24 divisors (see below), whose sum is σ = 160790259168. Its totient is φ = 22925599296.

The previous prime is 68843454431. The next prime is 68843454539. The reversal of 68843454468 is 86445434886.

It is a happy number.

It is an unprimeable number.

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, 2764446 + ... + 2789237.

It is an arithmetic number, because the mean of its divisors is an integer number (6699594132).

Almost surely, 268843454468 is an apocalyptic number.

It is an amenable number.

68843454468 is an abundant number, since it is smaller than the sum of its proper divisors (91946804700).

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

68843454468 is a wasteful number, since it uses less digits than its factorization.

68843454468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554723 (or 5554721 counting only the distinct ones).

The product of its digits is 70778880, while the sum is 60.

The spelling of 68843454468 in words is "sixty-eight billion, eight hundred forty-three million, four hundred fifty-four thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1033 2066 3099 4132 6198 12396 5553683 11107366 16661049 22214732 33322098 66644196 5736954539 11473909078 17210863617 22947818156 34421727234 68843454468