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268160868 = 22342393463
BaseRepresentation
bin11111111101111…
…00111101100100
3200200120222120000
433332330331210
51022122121433
642335341300
76434221053
oct1776747544
9620528500
10268160868
11128408258
1275981830
1343730991
142788639a
1518820113
hexffbcf64

268160868 has 60 divisors (see below), whose sum is σ = 704161920. Its totient is φ = 88987248.

The previous prime is 268160863. The next prime is 268160891. The reversal of 268160868 is 868061862.

It is a super-2 number, since 2×2681608682 = 143820502253026848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268160863) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75705 + ... + 79167.

It is an arithmetic number, because the mean of its divisors is an integer number (11736032).

Almost surely, 2268160868 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 268160868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352080960).

268160868 is an abundant number, since it is smaller than the sum of its proper divisors (436001052).

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

268160868 is a wasteful number, since it uses less digits than its factorization.

268160868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718 (or 3707 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 268160868 is about 16375.6180952048. The cubic root of 268160868 is about 644.8595475683.

The spelling of 268160868 in words is "two hundred sixty-eight million, one hundred sixty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 239 324 478 717 956 1434 2151 2868 3463 4302 6453 6926 8604 10389 12906 13852 19359 20778 25812 31167 38718 41556 62334 77436 93501 124668 187002 280503 374004 561006 827657 1122012 1655314 2482971 3310628 4965942 7448913 9931884 14897826 22346739 29795652 44693478 67040217 89386956 134080434 268160868