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238225065 = 35131221667
BaseRepresentation
bin11100011001100…
…00011010101001
3121121021002100120
432030300122221
5441441200230
635345553453
75621610501
oct1614603251
9547232316
10238225065
11112521021
1267945889
133a47bca0
14238d2a01
1515daa310
hexe3306a9

238225065 has 16 divisors (see below), whose sum is σ = 410480448. Its totient is φ = 117279936.

The previous prime is 238225033. The next prime is 238225073. The reversal of 238225065 is 560522832.

It is not a de Polignac number, because 238225065 - 25 = 238225033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610639 + ... + 611028.

It is an arithmetic number, because the mean of its divisors is an integer number (25655028).

Almost surely, 2238225065 is an apocalyptic number.

It is an amenable number.

238225065 is a deficient number, since it is larger than the sum of its proper divisors (172255383).

238225065 is a wasteful number, since it uses less digits than its factorization.

238225065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221688.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 238225065 is about 15434.5412954192. The cubic root of 238225065 is about 619.9107268272.

Adding to 238225065 its reverse (560522832), we get a palindrome (798747897).

The spelling of 238225065 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, sixty-five".

Divisors: 1 3 5 13 15 39 65 195 1221667 3665001 6108335 15881671 18325005 47645013 79408355 238225065