Base | Representation |
---|---|
bin | 11100011000001… |
… | …01010000011001 |
3 | 121120221002212000 |
4 | 32030011100121 |
5 | 441420021111 |
6 | 35342111213 |
7 | 5620243212 |
oct | 1614052031 |
9 | 546832760 |
10 | 238048281 |
11 | 112410219 |
12 | 6787b509 |
13 | 3a419693 |
14 | 23888409 |
15 | 15d72c56 |
hex | e305419 |
238048281 has 16 divisors (see below), whose sum is σ = 359320320. Its totient is φ = 155703600.
The previous prime is 238048273. The next prime is 238048289. The reversal of 238048281 is 182840832.
It is a happy number.
238048281 is a `hidden beast` number, since 23 + 80 + 482 + 81 = 666.
It is an interprime number because it is at equal distance from previous prime (238048273) and next prime (238048289).
It is not a de Polignac number, because 238048281 - 23 = 238048273 is a prime.
It is a super-3 number, since 3×2380482813 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (238048289) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81745 + ... + 84606.
It is an arithmetic number, because the mean of its divisors is an integer number (22457520).
Almost surely, 2238048281 is an apocalyptic number.
It is an amenable number.
238048281 is a deficient number, since it is larger than the sum of its proper divisors (121272039).
238048281 is a wasteful number, since it uses less digits than its factorization.
238048281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 166413 (or 166407 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 36.
The square root of 238048281 is about 15428.8133373892. The cubic root of 238048281 is about 619.7573460768.
The spelling of 238048281 in words is "two hundred thirty-eight million, forty-eight thousand, two hundred eighty-one".
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