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27191206675 = 521087648267
BaseRepresentation
bin11001010100101110…
…001110001100010011
32121012000001102021201
4121110232032030103
5421141422103200
620254053532031
71651552305013
oct312456161423
977160042251
1027191206675
1110593800036
12532a344017
1327444a9609
14145d3b5c43
15a92253c6a
hex654b8e313

27191206675 has 6 divisors (see below), whose sum is σ = 33717096308. Its totient is φ = 21752965320.

The previous prime is 27191206661. The next prime is 27191206681. The reversal of 27191206675 is 57660219172.

It is a de Polignac number, because none of the positive numbers 2k-27191206675 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 543824109 + ... + 543824158.

Almost surely, 227191206675 is an apocalyptic number.

27191206675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27191206675 is a deficient number, since it is larger than the sum of its proper divisors (6525889633).

27191206675 is a wasteful number, since it uses less digits than its factorization.

27191206675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087648277 (or 1087648272 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 27191206675 in words is "twenty-seven billion, one hundred ninety-one million, two hundred six thousand, six hundred seventy-five".

Divisors: 1 5 25 1087648267 5438241335 27191206675