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255161241 = 32192364877
BaseRepresentation
bin11110011010101…
…11001110011001
3122210010112102100
433031113032121
51010310124431
641152554013
76215556216
oct1715271631
9583115370
10255161241
11121039465
1271552909
1340b2b9aa
1425c60b0d
15176034e6
hexf357399

255161241 has 24 divisors (see below), whose sum is σ = 404838720. Its totient is φ = 154145376.

The previous prime is 255161219. The next prime is 255161243. The reversal of 255161241 is 142161552.

255161241 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 612 + 41 = 666.

It is not a de Polignac number, because 255161241 - 25 = 255161209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255161243) 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 23 ways as a sum of consecutive naturals, for example, 28506 + ... + 36371.

It is an arithmetic number, because the mean of its divisors is an integer number (16868280).

Almost surely, 2255161241 is an apocalyptic number.

It is an amenable number.

255161241 is a deficient number, since it is larger than the sum of its proper divisors (149677479).

255161241 is a wasteful number, since it uses less digits than its factorization.

255161241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64925 (or 64922 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 255161241 is about 15973.7672763816. The cubic root of 255161241 is about 634.2662001153.

The spelling of 255161241 in words is "two hundred fifty-five million, one hundred sixty-one thousand, two hundred forty-one".

Divisors: 1 3 9 19 23 57 69 171 207 437 1311 3933 64877 194631 583893 1232663 1492171 3697989 4476513 11093967 13429539 28351249 85053747 255161241