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238653483 = 3431979391
BaseRepresentation
bin11100011100110…
…01000000101011
3121122001212000220
432032121000223
5442043402413
635403101123
75625343515
oct1616310053
9548055026
10238653483
11112793992
1267b117a3
133a59bca3
14239a4bb5
1515e42223
hexe39902b

238653483 has 16 divisors (see below), whose sum is σ = 327292416. Its totient is φ = 154596960.

The previous prime is 238653479. The next prime is 238653491. The reversal of 238653483 is 384356832.

It is a happy number.

It is not a de Polignac number, because 238653483 - 22 = 238653479 is a prime.

It is a super-3 number, since 3×2386534833 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (238653413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20718 + ... + 30108.

It is an arithmetic number, because the mean of its divisors is an integer number (20455776).

Almost surely, 2238653483 is an apocalyptic number.

238653483 is a deficient number, since it is larger than the sum of its proper divisors (88638933).

238653483 is a wasteful number, since it uses less digits than its factorization.

238653483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634.

The product of its digits is 414720, while the sum is 42.

The square root of 238653483 is about 15448.4136078757. The cubic root of 238653483 is about 620.2821149344.

The spelling of 238653483 in words is "two hundred thirty-eight million, six hundred fifty-three thousand, four hundred eighty-three".

Divisors: 1 3 43 129 197 591 8471 9391 25413 28173 403813 1211439 1850027 5550081 79551161 238653483