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27948411885 = 351863227459
BaseRepresentation
bin11010000001110110…
…101110101111101101
32200010202212102120010
4122001312232233231
5424214243140020
620501143243433
72006405403252
oct320166565755
980122772503
1027948411885
1110942171569
1254bba49579
132835327834
1414d1ba1429
15ad8975de0
hex681daebed

27948411885 has 8 divisors (see below), whose sum is σ = 44717459040. Its totient is φ = 14905819664.

The previous prime is 27948411857. The next prime is 27948411899. The reversal of 27948411885 is 58811484972.

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 27948411885 - 211 = 27948409837 is a prime.

It is a super-2 number, since 2×279484118852 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 931613715 + ... + 931613744.

It is an arithmetic number, because the mean of its divisors is an integer number (5589682380).

Almost surely, 227948411885 is an apocalyptic number.

It is an amenable number.

27948411885 is a deficient number, since it is larger than the sum of its proper divisors (16769047155).

27948411885 is a wasteful number, since it uses less digits than its factorization.

27948411885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863227467.

The product of its digits is 5160960, while the sum is 57.

The spelling of 27948411885 in words is "twenty-seven billion, nine hundred forty-eight million, four hundred eleven thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 1863227459 5589682377 9316137295 27948411885