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186180000068 = 22199725255019
BaseRepresentation
bin1010110101100100110…
…0010101100101000100
3122210120012111221121002
42231121030111211010
511022244040000233
6221310243312432
716310466614006
oct2553114254504
9583505457532
10186180000068
1171a5a835757
12300bb37b718
13147310b421a
1490228a2376
154c9a0496e8
hex2b59315944

186180000068 has 24 divisors (see below), whose sum is σ = 346498874400. Its totient is φ = 87281342208.

The previous prime is 186180000067. The next prime is 186180000091. The reversal of 186180000068 is 860000081681.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 186179999986 and 186180000040.

It is not an unprimeable number, because it can be changed into a prime (186180000067) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12620138 + ... + 12634881.

It is an arithmetic number, because the mean of its divisors is an integer number (14437453100).

Almost surely, 2186180000068 is an apocalyptic number.

It is an amenable number.

186180000068 is a deficient number, since it is larger than the sum of its proper divisors (160318874332).

186180000068 is a wasteful number, since it uses less digits than its factorization.

186180000068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25255139 (or 25255137 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The spelling of 186180000068 in words is "one hundred eighty-six billion, one hundred eighty million, sixty-eight", and thus it is an aban number.

Divisors: 1 2 4 19 38 76 97 194 388 1843 3686 7372 25255019 50510038 101020076 479845361 959690722 1919381444 2449736843 4899473686 9798947372 46545000017 93090000034 186180000068