Base | Representation |
---|---|
bin | 1001000100010… |
… | …0111110110101 |
3 | 2122120012010010 |
4 | 2101010332311 |
5 | 34214000120 |
6 | 3435050433 |
7 | 641155245 |
oct | 221047665 |
9 | 78505103 |
10 | 38031285 |
11 | 1a516516 |
12 | 108a0a19 |
13 | 7b57726 |
14 | 509db25 |
15 | 35137e0 |
hex | 2444fb5 |
38031285 has 16 divisors (see below), whose sum is σ = 60984000. Its totient is φ = 20238720.
The previous prime is 38031281. The next prime is 38031289. The reversal of 38031285 is 58213083.
It is a happy number.
38031285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (38031281) and next prime (38031289).
It is not a de Polignac number, because 38031285 - 22 = 38031281 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38031281) 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, 4945 + ... + 10025.
It is an arithmetic number, because the mean of its divisors is an integer number (3811500).
Almost surely, 238031285 is an apocalyptic number.
It is an amenable number.
38031285 is a deficient number, since it is larger than the sum of its proper divisors (22952715).
38031285 is a wasteful number, since it uses less digits than its factorization.
38031285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5588.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 38031285 is about 6166.9510294796. The cubic root of 38031285 is about 336.2897780040.
The spelling of 38031285 in words is "thirty-eight million, thirty-one thousand, two hundred eighty-five".
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