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238338668 = 22531124239
BaseRepresentation
bin11100011010011…
…00001001101100
3121121110212012002
432031030021230
5442003314133
635352231432
75622562631
oct1615141154
9547425162
10238338668
11112599407
126799b578
133a4bb8c9
1423922188
1515dcdce8
hexe34c26c

238338668 has 12 divisors (see below), whose sum is σ = 424962720. Its totient is φ = 116920752.

The previous prime is 238338647. The next prime is 238338671. The reversal of 238338668 is 866833832.

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 3 ways as a sum of consecutive naturals, for example, 561908 + ... + 562331.

It is an arithmetic number, because the mean of its divisors is an integer number (35413560).

Almost surely, 2238338668 is an apocalyptic number.

It is an amenable number.

238338668 is a deficient number, since it is larger than the sum of its proper divisors (186624052).

238338668 is a wasteful number, since it uses less digits than its factorization.

238338668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124296 (or 1124294 counting only the distinct ones).

The product of its digits is 995328, while the sum is 47.

The square root of 238338668 is about 15438.2210115026. The cubic root of 238338668 is about 620.0092506424.

The spelling of 238338668 in words is "two hundred thirty-eight million, three hundred thirty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 53 106 212 1124239 2248478 4496956 59584667 119169334 238338668