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268160281 = 1925935443
BaseRepresentation
bin11111111101111…
…00110100011001
3200200120221202021
433332330310121
51022122112111
642335334441
76434216254
oct1776746431
9620527667
10268160281
11128407874
1275981421
134373062c
142788609b
151881ed71
hexffbcd19

268160281 has 8 divisors (see below), whose sum is σ = 282434720. Its totient is φ = 253901952.

The previous prime is 268160237. The next prime is 268160287. The reversal of 268160281 is 182061862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268160281 - 27 = 268160153 is a prime.

It is a super-2 number, since 2×2681602812 = 143819872611997922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268160287) by changing a digit.

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, 46546 + ... + 51988.

It is an arithmetic number, because the mean of its divisors is an integer number (35304340).

Almost surely, 2268160281 is an apocalyptic number.

It is an amenable number.

268160281 is a deficient number, since it is larger than the sum of its proper divisors (14274439).

268160281 is a wasteful number, since it uses less digits than its factorization.

268160281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 268160281 is about 16375.6001722074. The cubic root of 268160281 is about 644.8590770387.

The spelling of 268160281 in words is "two hundred sixty-eight million, one hundred sixty thousand, two hundred eighty-one".

Divisors: 1 19 2593 5443 49267 103417 14113699 268160281