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268171328 = 2617317951
BaseRepresentation
bin11111111101111…
…11100001000000
3200200121111220102
433332333201000
51022122440303
642335501532
76434263415
oct1776774100
9620544812
10268171328
111284150a7
12759878a8
1343735679
142788a10c
1518823288
hexffbf840

268171328 has 56 divisors (see below), whose sum is σ = 581704704. Its totient is φ = 122112000.

The previous prime is 268171327. The next prime is 268171357. The reversal of 268171328 is 823171862.

268171328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2681713282 = 143831722322567168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268171291 and 268171300.

It is not an unprimeable number, because it can be changed into a prime (268171327) 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, 29753 + ... + 37703.

It is an arithmetic number, because the mean of its divisors is an integer number (10387584).

Almost surely, 2268171328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268171328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290852352).

268171328 is an abundant number, since it is smaller than the sum of its proper divisors (313533376).

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

268171328 is a wasteful number, since it uses less digits than its factorization.

268171328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8011 (or 8001 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 268171328 is about 16375.9374693481. The cubic root of 268171328 is about 644.8679320170.

The spelling of 268171328 in words is "two hundred sixty-eight million, one hundred seventy-one thousand, three hundred twenty-eight".

Divisors: 1 2 4 8 16 17 31 32 34 62 64 68 124 136 248 272 496 527 544 992 1054 1088 1984 2108 4216 7951 8432 15902 16864 31804 33728 63608 127216 135167 246481 254432 270334 492962 508864 540668 985924 1081336 1971848 2162672 3943696 4190177 4325344 7887392 8380354 8650688 15774784 16760708 33521416 67042832 134085664 268171328