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238396025 = 5272194609
BaseRepresentation
bin11100011010110…
…10001001111001
3121121120202212102
432031122021321
5442012133100
635353353145
75623222100
oct1615321171
9547522772
10238396025
1111262850a
1267a087b5
133a50ba4a
1423939037
1515de0cd5
hexe35a279

238396025 has 18 divisors (see below), whose sum is σ = 343875870. Its totient is φ = 163470720.

The previous prime is 238396019. The next prime is 238396031. The reversal of 238396025 is 520693832.

It is an interprime number because it is at equal distance from previous prime (238396019) and next prime (238396031).

It can be written as a sum of positive squares in 3 ways, for example, as 1882384 + 236513641 = 1372^2 + 15379^2 .

It is not a de Polignac number, because 238396025 - 28 = 238395769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238396025.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96080 + ... + 98529.

It is an arithmetic number, because the mean of its divisors is an integer number (19104215).

Almost surely, 2238396025 is an apocalyptic number.

238396025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

238396025 is a deficient number, since it is larger than the sum of its proper divisors (105479845).

238396025 is a wasteful number, since it uses less digits than its factorization.

238396025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194633 (or 194621 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 238396025 is about 15440.0785295930. The cubic root of 238396025 is about 620.0589824219.

The spelling of 238396025 in words is "two hundred thirty-eight million, three hundred ninety-six thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 1225 194609 973045 1362263 4865225 6811315 9535841 34056575 47679205 238396025