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238648875 = 3531275011
BaseRepresentation
bin11100011100101…
…11111000101011
3121122001121201020
432032113320223
5442043231000
635403023523
75625324213
oct1616277053
9548047636
10238648875
11112790483
1267b0aba3
133a599b6a
14239a3243
1515e40ba0
hexe397e2b

238648875 has 32 divisors (see below), whose sum is σ = 400318464. Its totient is φ = 126252000.

The previous prime is 238648871. The next prime is 238648919. The reversal of 238648875 is 578846832.

It is a happy number.

It is not a de Polignac number, because 238648875 - 22 = 238648871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238648871) 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 31 ways as a sum of consecutive naturals, for example, 45120 + ... + 50130.

It is an arithmetic number, because the mean of its divisors is an integer number (12509952).

Almost surely, 2238648875 is an apocalyptic number.

238648875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

238648875 is a deficient number, since it is larger than the sum of its proper divisors (161669589).

238648875 is a wasteful number, since it uses less digits than its factorization.

238648875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156 (or 5146 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 238648875 is about 15448.2644656285. The cubic root of 238648875 is about 620.2781227049.

The spelling of 238648875 in words is "two hundred thirty-eight million, six hundred forty-eight thousand, eight hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 127 375 381 635 1905 3175 5011 9525 15033 15875 25055 47625 75165 125275 375825 626375 636397 1879125 1909191 3181985 9545955 15909925 47729775 79549625 238648875