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7643064343 = 12797161979
BaseRepresentation
bin1110001111000111…
…11110100000010111
3201201122202220020011
413013203332200113
5111123111024333
63302225221051
7360254655265
oct70743764027
921648686204
107643064343
113272346402
121593791787
1394a5cc0a5
14527113435
152eaee19cd
hex1c78fe817

7643064343 has 8 divisors (see below), whose sum is σ = 7711303680. Its totient is φ = 7574951160.

The previous prime is 7643064337. The next prime is 7643064361. The reversal of 7643064343 is 3434603467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7643064343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7643064296 and 7643064305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7643064743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92328 + ... + 154306.

It is an arithmetic number, because the mean of its divisors is an integer number (963912960).

Almost surely, 27643064343 is an apocalyptic number.

7643064343 is a deficient number, since it is larger than the sum of its proper divisors (68239337).

7643064343 is a wasteful number, since it uses less digits than its factorization.

7643064343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63077.

The product of its (nonzero) digits is 435456, while the sum is 40.

The square root of 7643064343 is about 87424.6209199674. The cubic root of 7643064343 is about 1969.8016878027.

The spelling of 7643064343 in words is "seven billion, six hundred forty-three million, sixty-four thousand, three hundred forty-three".

Divisors: 1 127 971 61979 123317 7871333 60181609 7643064343