Base | Representation |
---|---|
bin | 11100011101111… |
… | …01110011111101 |
3 | 121122100111210210 |
4 | 32032331303331 |
5 | 442113213341 |
6 | 35410223033 |
7 | 5626542135 |
oct | 1616756375 |
9 | 548314723 |
10 | 238804221 |
11 | 112887167 |
12 | 67b84a79 |
13 | 3a622796 |
14 | 23a03ac5 |
15 | 15e71c16 |
hex | e3bdcfd |
238804221 has 8 divisors (see below), whose sum is σ = 318678624. Its totient is φ = 159066320.
The previous prime is 238804127. The next prime is 238804261. The reversal of 238804221 is 122408832.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 238804221 - 211 = 238802173 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238804261) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29970 + ... + 37091.
It is an arithmetic number, because the mean of its divisors is an integer number (39834828).
Almost surely, 2238804221 is an apocalyptic number.
It is an amenable number.
238804221 is a deficient number, since it is larger than the sum of its proper divisors (79874403).
238804221 is a wasteful number, since it uses less digits than its factorization.
238804221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68251.
The product of its (nonzero) digits is 6144, while the sum is 30.
The square root of 238804221 is about 15453.2915911142. The cubic root of 238804221 is about 620.4126813742.
The spelling of 238804221 in words is "two hundred thirty-eight million, eight hundred four thousand, two hundred twenty-one".
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