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168888739382 = 21111367935937
BaseRepresentation
bin1001110101001010001…
…1011010011000110110
3121010221010221220010122
42131102203122120312
510231341004130012
6205330355451542
715126135412166
oct2352243323066
9533833856118
10168888739382
1165697321670
12288945b6bb2
1312c06962b1c
1482622465a6
1545d6edce72
hex27528da636

168888739382 has 16 divisors (see below), whose sum is σ = 278809089552. Its totient is φ = 76088248320.

The previous prime is 168888739309. The next prime is 168888739403. The reversal of 168888739382 is 283937888861.

168888739382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1688887393822 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33965483 + ... + 33970454.

It is an arithmetic number, because the mean of its divisors is an integer number (17425568097).

Almost surely, 2168888739382 is an apocalyptic number.

168888739382 is a deficient number, since it is larger than the sum of its proper divisors (109920350170).

168888739382 is a wasteful number, since it uses less digits than its factorization.

168888739382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67936063.

The product of its digits is 222953472, while the sum is 71.

The spelling of 168888739382 in words is "one hundred sixty-eight billion, eight hundred eighty-eight million, seven hundred thirty-nine thousand, three hundred eighty-two".

Divisors: 1 2 11 22 113 226 1243 2486 67935937 135871874 747295307 1494590614 7676760881 15353521762 84444369691 168888739382