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6794091889 = 13539860801
BaseRepresentation
bin1100101001111010…
…11001110101110001
3122112111021121221221
412110331121311301
5102403241420024
63042100545041
7330235554034
oct62475316561
918474247857
106794091889
1129770a6882
1213973b2181
13843760720
1448647b01b
1529b6e43e4
hex194f59d71

6794091889 has 8 divisors (see below), whose sum is σ = 7454766312. Its totient is φ = 6153139200.

The previous prime is 6794091881. The next prime is 6794091917. The reversal of 6794091889 is 9881904976.

It can be written as a sum of positive squares in 4 ways, for example, as 718668864 + 6075423025 = 26808^2 + 77945^2 .

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

It is not a de Polignac number, because 6794091889 - 23 = 6794091881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6794091881) 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, 4929712 + ... + 4931089.

It is an arithmetic number, because the mean of its divisors is an integer number (931845789).

Almost surely, 26794091889 is an apocalyptic number.

It is an amenable number.

6794091889 is a deficient number, since it is larger than the sum of its proper divisors (660674423).

6794091889 is a wasteful number, since it uses less digits than its factorization.

6794091889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860867.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The square root of 6794091889 is about 82426.2815429642. The cubic root of 6794091889 is about 1893.9876324586.

The spelling of 6794091889 in words is "six billion, seven hundred ninety-four million, ninety-one thousand, eight hundred eighty-nine".

Divisors: 1 13 53 689 9860801 128190413 522622453 6794091889