Base | Representation |
---|---|
bin | 1001010001101… |
… | …1100101010101 |
3 | 2201012211212222 |
4 | 2110123211111 |
5 | 34430112133 |
6 | 3505552125 |
7 | 651506042 |
oct | 224334525 |
9 | 81184788 |
10 | 38910293 |
11 | 1aa66974 |
12 | 11045645 |
13 | 80a4856 |
14 | 524c1c9 |
15 | 3638e98 |
hex | 251b955 |
38910293 has 2 divisors, whose sum is σ = 38910294. Its totient is φ = 38910292.
The previous prime is 38910283. The next prime is 38910341. The reversal of 38910293 is 39201983.
38910293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 31281649 + 7628644 = 5593^2 + 2762^2 .
It is a cyclic number.
It is not a de Polignac number, because 38910293 - 218 = 38648149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38910203) 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 as a sum of consecutive naturals, namely, 19455146 + 19455147.
It is an arithmetic number, because the mean of its divisors is an integer number (19455147).
Almost surely, 238910293 is an apocalyptic number.
It is an amenable number.
38910293 is a deficient number, since it is larger than the sum of its proper divisors (1).
38910293 is an equidigital number, since it uses as much as digits as its factorization.
38910293 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 11664, while the sum is 35.
The square root of 38910293 is about 6237.8115553454. The cubic root of 38910293 is about 338.8609315207.
The spelling of 38910293 in words is "thirty-eight million, nine hundred ten thousand, two hundred ninety-three".
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