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27713192849 = 389265726813
BaseRepresentation
bin11001110011110101…
…011100001110010001
32122112101021001200222
4121303311130032101
5423224034132344
620421541522425
72000521152416
oct316365341621
978471231628
1027713192849
1110831413a71
125455113415
1327c868bb84
1414ac85210d
15ac2eb15ee
hex673d5c391

27713192849 has 8 divisors (see below), whose sum is σ = 27795928680. Its totient is φ = 27630516736.

The previous prime is 27713192839. The next prime is 27713192861. The reversal of 27713192849 is 94829131772.

It can be written as a sum of positive squares in 4 ways, for example, as 5412250624 + 22300942225 = 73568^2 + 149335^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27713192849 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 27713192849.

It is not an unprimeable number, because it can be changed into a prime (27713192839) 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, 1020167 + ... + 1046979.

It is an arithmetic number, because the mean of its divisors is an integer number (3474491085).

Almost surely, 227713192849 is an apocalyptic number.

It is an amenable number.

27713192849 is a deficient number, since it is larger than the sum of its proper divisors (82735831).

27713192849 is a wasteful number, since it uses less digits than its factorization.

27713192849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29859.

The product of its digits is 1524096, while the sum is 53.

The spelling of 27713192849 in words is "twenty-seven billion, seven hundred thirteen million, one hundred ninety-two thousand, eight hundred forty-nine".

Divisors: 1 389 2657 26813 1033573 10430257 71242141 27713192849