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7685315005 = 519342118917
BaseRepresentation
bin1110010100001010…
…01001100110111101
3201211121021110020111
413022011021212331
5111214420040010
63310334550021
7361310046124
oct71205114675
921747243214
107685315005
113294183a05
1215a5968311
139562a3194
1452c990abb
152eea8a58a
hex1ca1499bd

7685315005 has 16 divisors (see below), whose sum is σ = 9292672944. Its totient is φ = 6101544960.

The previous prime is 7685314991. The next prime is 7685315017. The reversal of 7685315005 is 5005135867.

It can be written as a sum of positive squares in 8 ways, for example, as 1161037476 + 6524277529 = 34074^2 + 80773^2 .

It is not a de Polignac number, because 7685315005 - 27 = 7685314877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 396807 + ... + 415723.

It is an arithmetic number, because the mean of its divisors is an integer number (580792059).

Almost surely, 27685315005 is an apocalyptic number.

It is an amenable number.

7685315005 is a deficient number, since it is larger than the sum of its proper divisors (1607357939).

7685315005 is a wasteful number, since it uses less digits than its factorization.

7685315005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19536.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 7685315005 is about 87665.9284157762. The cubic root of 7685315005 is about 1973.4246909523.

The spelling of 7685315005 in words is "seven billion, six hundred eighty-five million, three hundred fifteen thousand, five".

Divisors: 1 5 193 421 965 2105 18917 81253 94585 406265 3650981 7964057 18254905 39820285 1537063001 7685315005