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238662065 = 5172807789
BaseRepresentation
bin11100011100110…
…11000110110001
3121122002021210202
432032123012301
5442044141230
635403204545
75625410525
oct1616330661
9548067722
10238662065
1111279a384
1267b16755
133a5a2b75
14239a7d85
1515e44a45
hexe39b1b1

238662065 has 8 divisors (see below), whose sum is σ = 303241320. Its totient is φ = 179698432.

The previous prime is 238662043. The next prime is 238662071. The reversal of 238662065 is 560266832.

It can be written as a sum of positive squares in 4 ways, for example, as 113401201 + 125260864 = 10649^2 + 11192^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238662065 - 216 = 238596529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403810 + ... + 1403979.

It is an arithmetic number, because the mean of its divisors is an integer number (37905165).

Almost surely, 2238662065 is an apocalyptic number.

It is an amenable number.

238662065 is a deficient number, since it is larger than the sum of its proper divisors (64579255).

238662065 is a wasteful number, since it uses less digits than its factorization.

238662065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807811.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 238662065 is about 15448.6913685270. The cubic root of 238662065 is about 620.2895499782.

The spelling of 238662065 in words is "two hundred thirty-eight million, six hundred sixty-two thousand, sixty-five".

Divisors: 1 5 17 85 2807789 14038945 47732413 238662065