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238918112938 = 2947126144727
BaseRepresentation
bin1101111010000010100…
…0010001011010101010
3211211200121120122221201
43132200220101122222
512403301014103223
6301431340154414
723155420311061
oct3364050213252
9754617518851
10238918112938
11923630564aa
123a379238a0a
13196b71c327b
14b7c6b071d8
156334ea1ead
hex37a0a116aa

238918112938 has 8 divisors (see below), whose sum is σ = 358755606432. Its totient is φ = 119332910796.

The previous prime is 238918112933. The next prime is 238918112941. The reversal of 238918112938 is 839211819832.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (238918112933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63070470 + ... + 63074257.

It is an arithmetic number, because the mean of its divisors is an integer number (44844450804).

Almost surely, 2238918112938 is an apocalyptic number.

238918112938 is a deficient number, since it is larger than the sum of its proper divisors (119837493494).

238918112938 is a wasteful number, since it uses less digits than its factorization.

238918112938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126145676.

The product of its digits is 1492992, while the sum is 55.

The spelling of 238918112938 in words is "two hundred thirty-eight billion, nine hundred eighteen million, one hundred twelve thousand, nine hundred thirty-eight".

Divisors: 1 2 947 1894 126144727 252289454 119459056469 238918112938