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238516055 = 5435918803
BaseRepresentation
bin11100011011101…
…11011101010111
3121121210212111222
432031313131113
5442030003210
635400120555
75624232041
oct1615673527
9547725458
10238516055
111126aa708
1267a6615b
133a55157b
142396aa91
1515e16655
hexe377757

238516055 has 16 divisors (see below), whose sum is σ = 297855360. Its totient is φ = 183206688.

The previous prime is 238516037. The next prime is 238516067. The reversal of 238516055 is 550615832.

It is a cyclic number.

It is not a de Polignac number, because 238516055 - 210 = 238515031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3284 + ... + 22086.

It is an arithmetic number, because the mean of its divisors is an integer number (18615960).

Almost surely, 2238516055 is an apocalyptic number.

238516055 is a deficient number, since it is larger than the sum of its proper divisors (59339305).

238516055 is a wasteful number, since it uses less digits than its factorization.

238516055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18910.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 238516055 is about 15443.9650025503. The cubic root of 238516055 is about 620.1630294480.

The spelling of 238516055 in words is "two hundred thirty-eight million, five hundred sixteen thousand, fifty-five".

Divisors: 1 5 43 59 215 295 2537 12685 18803 94015 808529 1109377 4042645 5546885 47703211 238516055