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7699243385 = 56173249449
BaseRepresentation
bin1110010101110100…
…10010000101111001
3201212120111002101102
413022322102011321
5111232001242020
63311553301145
7361536326501
oct71272220571
921776432342
107699243385
1132a1027569
1215aa5647b5
1395913bb22
14530778a01
15300ddc475
hex1cae92179

7699243385 has 8 divisors (see below), whose sum is σ = 9240625800. Its totient is φ = 6158372224.

The previous prime is 7699243303. The next prime is 7699243397. The reversal of 7699243385 is 5833429967.

It can be written as a sum of positive squares in 4 ways, for example, as 321807721 + 7377435664 = 17939^2 + 85892^2 .

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 7699243385 - 214 = 7699227001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7699243385.

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 7 ways as a sum of consecutive naturals, for example, 93860 + ... + 155589.

It is an arithmetic number, because the mean of its divisors is an integer number (1155078225).

Almost surely, 27699243385 is an apocalyptic number.

It is an amenable number.

7699243385 is a deficient number, since it is larger than the sum of its proper divisors (1541382415).

7699243385 is a wasteful number, since it uses less digits than its factorization.

7699243385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255627.

The product of its digits is 9797760, while the sum is 56.

The square root of 7699243385 is about 87745.3325539313. The cubic root of 7699243385 is about 1974.6161416033.

The spelling of 7699243385 in words is "seven billion, six hundred ninety-nine million, two hundred forty-three thousand, three hundred eighty-five".

Divisors: 1 5 6173 30865 249449 1247245 1539848677 7699243385