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238145118 = 2339690853
BaseRepresentation
bin11100011000111…
…00111001011110
3121121010000200120
432030130321132
5441431120433
635344135410
75621125431
oct1614347136
9547100616
10238145118
11112476a52
1267907566
133a451793
14238b1818
1515d917b3
hexe31ce5e

238145118 has 8 divisors (see below), whose sum is σ = 476290248. Its totient is φ = 79381704.

The previous prime is 238145113. The next prime is 238145123. The reversal of 238145118 is 811541832.

It is an interprime number because it is at equal distance from previous prime (238145113) and next prime (238145123).

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

238145118 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238145113) 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, 19845421 + ... + 19845432.

It is an arithmetic number, because the mean of its divisors is an integer number (59536281).

Almost surely, 2238145118 is an apocalyptic number.

238145118 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238145118 is a wasteful number, since it uses less digits than its factorization.

238145118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39690858.

The product of its digits is 7680, while the sum is 33.

The square root of 238145118 is about 15431.9512052106. The cubic root of 238145118 is about 619.8413728769.

The spelling of 238145118 in words is "two hundred thirty-eight million, one hundred forty-five thousand, one hundred eighteen".

Divisors: 1 2 3 6 39690853 79381706 119072559 238145118