Base | Representation |
---|---|
bin | 1001010000001… |
… | …0001010010001 |
3 | 2201000120001020 |
4 | 2110002022101 |
5 | 34413244121 |
6 | 3503430053 |
7 | 650563332 |
oct | 224021221 |
9 | 81016036 |
10 | 38806161 |
11 | 1a9a5709 |
12 | 10bb5329 |
13 | 8069334 |
14 | 5222289 |
15 | 36181c6 |
hex | 2502291 |
38806161 has 16 divisors (see below), whose sum is σ = 53209344. Its totient is φ = 25144704.
The previous prime is 38806133. The next prime is 38806171. The reversal of 38806161 is 16160883.
It is not a de Polignac number, because 38806161 - 29 = 38805649 is a prime.
It is not an unprimeable number, because it can be changed into a prime (38806171) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21261 + ... + 23013.
It is an arithmetic number, because the mean of its divisors is an integer number (3325584).
Almost surely, 238806161 is an apocalyptic number.
It is an amenable number.
38806161 is a deficient number, since it is larger than the sum of its proper divisors (14403183).
38806161 is a wasteful number, since it uses less digits than its factorization.
38806161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1960.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 38806161 is about 6229.4591257990. The cubic root of 38806161 is about 338.5583741212.
The spelling of 38806161 in words is "thirty-eight million, eight hundred six thousand, one hundred sixty-one".
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