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238005055 = 547601011
BaseRepresentation
bin11100010111110…
…10101100111111
3121120211220120001
432023322230333
5441412130210
635341135131
75620003201
oct1613725477
9546756501
10238005055
111123907a2
126785a4a7
133a402ac2
1423876771
1515d6503a
hexe2fab3f

238005055 has 4 divisors (see below), whose sum is σ = 285606072. Its totient is φ = 190404040.

The previous prime is 238005029. The next prime is 238005101. The reversal of 238005055 is 550500832.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 238005055 - 223 = 229616447 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 23800501 + ... + 23800510.

It is an arithmetic number, because the mean of its divisors is an integer number (71401518).

Almost surely, 2238005055 is an apocalyptic number.

238005055 is a deficient number, since it is larger than the sum of its proper divisors (47601017).

238005055 is an equidigital number, since it uses as much as digits as its factorization.

238005055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47601016.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 238005055 is about 15427.4124531627. The cubic root of 238005055 is about 619.7198309242.

Adding to 238005055 its reverse (550500832), we get a palindrome (788505887).

The spelling of 238005055 in words is "two hundred thirty-eight million, five thousand, fifty-five".

Divisors: 1 5 47601011 238005055