Base | Representation |
---|---|
bin | 1001010010100… |
… | …0111100110111 |
3 | 2201022121222220 |
4 | 2110220330313 |
5 | 34433340142 |
6 | 3511053423 |
7 | 652124502 |
oct | 224507467 |
9 | 81277886 |
10 | 38965047 |
11 | 1aaa4020 |
12 | 11071273 |
13 | 80c3754 |
14 | 5264139 |
15 | 364a2ec |
hex | 2528f37 |
38965047 has 32 divisors (see below), whose sum is σ = 59996160. Its totient is φ = 22272000.
The previous prime is 38965039. The next prime is 38965051. The reversal of 38965047 is 74056983.
It is a happy number.
It is not a de Polignac number, because 38965047 - 23 = 38965039 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38965027) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41479 + ... + 42407.
It is an arithmetic number, because the mean of its divisors is an integer number (1874880).
Almost surely, 238965047 is an apocalyptic number.
38965047 is a deficient number, since it is larger than the sum of its proper divisors (21031113).
38965047 is a wasteful number, since it uses less digits than its factorization.
38965047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1015.
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 38965047 is about 6242.1988914164. The cubic root of 38965047 is about 339.0198037525.
The spelling of 38965047 in words is "thirty-eight million, nine hundred sixty-five thousand, forty-seven".
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