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68384166 = 23171275279
BaseRepresentation
bin1000001001101…
…11010110100110
311202200021102220
410010313112212
5120001243131
610441413210
71460153514
oct404672646
9152607386
1068384166
1135668044
121aa9a206
1311224206
1491214b4
15600be96
hex41375a6

68384166 has 32 divisors (see below), whose sum is σ = 145981440. Its totient is φ = 21280896.

The previous prime is 68384159. The next prime is 68384189. The reversal of 68384166 is 66148386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10315 + ... + 15593.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 268384166 is an apocalyptic number.

68384166 is an abundant number, since it is smaller than the sum of its proper divisors (77597274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68384166 is a wasteful number, since it uses less digits than its factorization.

68384166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428.

The product of its digits is 165888, while the sum is 42.

The square root of 68384166 is about 8269.4719299360. The cubic root of 68384166 is about 408.9327109169.

The spelling of 68384166 in words is "sixty-eight million, three hundred eighty-four thousand, one hundred sixty-six".

Divisors: 1 2 3 6 17 34 51 102 127 254 381 762 2159 4318 5279 6477 10558 12954 15837 31674 89743 179486 269229 538458 670433 1340866 2011299 4022598 11397361 22794722 34192083 68384166