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238855141 = 734122163
BaseRepresentation
bin11100011110010…
…10001111100101
3121122110002122201
432033022033211
5442121331031
635411254501
75630143450
oct1617121745
9548402581
10238855141
11112911448
1267baa431
133a63ca05
1423a18497
1515e81d61
hexe3ca3e5

238855141 has 4 divisors (see below), whose sum is σ = 272977312. Its totient is φ = 204732972.

The previous prime is 238855129. The next prime is 238855171. The reversal of 238855141 is 141558832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238855141 - 25 = 238855109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238855141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238855121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17061075 + ... + 17061088.

It is an arithmetic number, because the mean of its divisors is an integer number (68244328).

Almost surely, 2238855141 is an apocalyptic number.

It is an amenable number.

238855141 is a deficient number, since it is larger than the sum of its proper divisors (34122171).

238855141 is an equidigital number, since it uses as much as digits as its factorization.

238855141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34122170.

The product of its digits is 38400, while the sum is 37.

The square root of 238855141 is about 15454.9390487313. The cubic root of 238855141 is about 620.4567749117.

The spelling of 238855141 in words is "two hundred thirty-eight million, eight hundred fifty-five thousand, one hundred forty-one".

Divisors: 1 7 34122163 238855141