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7668131659 = 123114094421
BaseRepresentation
bin1110010010000111…
…00110011101001011
3201210101221110010021
413021003212131023
5111201020203114
63304522401311
7361011020656
oct71103463513
921711843107
107668131659
1132855078a1
1215a0060237
13952867b16
1452a59a89d
152ed2e4024
hex1c90e674b

7668131659 has 8 divisors (see below), whose sum is σ = 7681544640. Its totient is φ = 7654732800.

The previous prime is 7668131651. The next prime is 7668131689. The reversal of 7668131659 is 9561318667.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7668131659 - 23 = 7668131651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668131651) 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, 1732269 + ... + 1736689.

It is an arithmetic number, because the mean of its divisors is an integer number (960193080).

Almost surely, 27668131659 is an apocalyptic number.

7668131659 is a deficient number, since it is larger than the sum of its proper divisors (13412981).

7668131659 is a wasteful number, since it uses less digits than its factorization.

7668131659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061.

The product of its digits is 1632960, while the sum is 52.

The square root of 7668131659 is about 87567.8688732345. The cubic root of 7668131659 is about 1971.9528213989.

The spelling of 7668131659 in words is "seven billion, six hundred sixty-eight million, one hundred thirty-one thousand, six hundred fifty-nine".

Divisors: 1 1231 1409 4421 1734479 5442251 6229189 7668131659