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168385052 = 221121732011
BaseRepresentation
bin10100000100101…
…01101000011100
3102201211211212102
422002111220130
5321101310202
624413024232
74113151343
oct1202255034
9381754772
10168385052
118705a200
1248485078
1328b68234
1418512b5a
15ebb1d02
hexa095a1c

168385052 has 36 divisors (see below), whose sum is σ = 325931928. Its totient is φ = 76058400.

The previous prime is 168384989. The next prime is 168385057. The reversal of 168385052 is 250583861.

It is a junction number, because it is equal to n+sod(n) for n = 168384997 and 168385015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168385057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82727 + ... + 84737.

Almost surely, 2168385052 is an apocalyptic number.

It is an amenable number.

168385052 is a deficient number, since it is larger than the sum of its proper divisors (157546876).

168385052 is a wasteful number, since it uses less digits than its factorization.

168385052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2197 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 168385052 is about 12976.3265988492. The cubic root of 168385052 is about 552.2060728527.

The spelling of 168385052 in words is "one hundred sixty-eight million, three hundred eighty-five thousand, fifty-two".

Divisors: 1 2 4 11 22 44 121 173 242 346 484 692 1903 2011 3806 4022 7612 8044 20933 22121 41866 44242 83732 88484 243331 347903 486662 695806 973324 1391612 3826933 7653866 15307732 42096263 84192526 168385052