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6693607349 = 112134255313
BaseRepresentation
bin1100011101111100…
…00101011110110101
3122021111012111002022
412032332011132311
5102202030413344
63024111122525
7324605503142
oct61676053665
918244174068
106693607349
112925404300
121369813445
138289aa510
14476da13c9
152929960ee
hex18ef857b5

6693607349 has 12 divisors (see below), whose sum is σ = 7923394668. Its totient is φ = 5617011840.

The previous prime is 6693607343. The next prime is 6693607367. The reversal of 6693607349 is 9437063966.

It can be written as a sum of positive squares in 2 ways, for example, as 3862622500 + 2830984849 = 62150^2 + 53207^2 .

It is not a de Polignac number, because 6693607349 - 220 = 6692558773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6693607349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6693607343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2126084 + ... + 2129229.

It is an arithmetic number, because the mean of its divisors is an integer number (660282889).

Almost surely, 26693607349 is an apocalyptic number.

It is an amenable number.

6693607349 is a deficient number, since it is larger than the sum of its proper divisors (1229787319).

6693607349 is a wasteful number, since it uses less digits than its factorization.

6693607349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255348 (or 4255337 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 53.

The square root of 6693607349 is about 81814.4690687411. The cubic root of 6693607349 is about 1884.6038656587.

The spelling of 6693607349 in words is "six billion, six hundred ninety-three million, six hundred seven thousand, three hundred forty-nine".

Divisors: 1 11 13 121 143 1573 4255313 46808443 55319069 514892873 608509759 6693607349