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268144755 = 35533311019
BaseRepresentation
bin11111111101110…
…01000001110011
3200200120011110020
433332321001303
51022121113010
642335134523
76434123064
oct1776710163
9620504406
10268144755
111283a713a
1275974443
1343726548
142788056b
151881a470
hexffb9073

268144755 has 32 divisors (see below), whose sum is σ = 438877440. Its totient is φ = 139751040.

The previous prime is 268144733. The next prime is 268144771. The reversal of 268144755 is 557441862.

It is a happy number.

It is not a de Polignac number, because 268144755 - 26 = 268144691 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262636 + ... + 263654.

It is an arithmetic number, because the mean of its divisors is an integer number (13714920).

Almost surely, 2268144755 is an apocalyptic number.

268144755 is a deficient number, since it is larger than the sum of its proper divisors (170732685).

268144755 is a wasteful number, since it uses less digits than its factorization.

268144755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its digits is 268800, while the sum is 42.

The square root of 268144755 is about 16375.1261063846. The cubic root of 268144755 is about 644.8466314033.

The spelling of 268144755 in words is "two hundred sixty-eight million, one hundred forty-four thousand, seven hundred fifty-five".

Divisors: 1 3 5 15 53 159 265 331 795 993 1019 1655 3057 4965 5095 15285 17543 52629 54007 87715 162021 263145 270035 337289 810105 1011867 1686445 5059335 17876317 53628951 89381585 268144755