Base | Representation |
---|---|
bin | 1001001001110… |
… | …1101001110111 |
3 | 2200020122100001 |
4 | 2102131221313 |
5 | 34312110422 |
6 | 3450532131 |
7 | 644230165 |
oct | 222355167 |
9 | 80218301 |
10 | 38394487 |
11 | 1a74438a |
12 | 10a37047 |
13 | 7c53b41 |
14 | 5156235 |
15 | 3586227 |
hex | 249da77 |
38394487 has 8 divisors (see below), whose sum is σ = 39002480. Its totient is φ = 37791360.
The previous prime is 38394481. The next prime is 38394529. The reversal of 38394487 is 78449383.
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 38394487 - 23 = 38394479 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38394481) 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, 16687 + ... + 18847.
It is an arithmetic number, because the mean of its divisors is an integer number (4875310).
Almost surely, 238394487 is an apocalyptic number.
38394487 is a deficient number, since it is larger than the sum of its proper divisors (607993).
38394487 is a wasteful number, since it uses less digits than its factorization.
38394487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2433.
The product of its digits is 580608, while the sum is 46.
The square root of 38394487 is about 6196.3285096902. The cubic root of 38394487 is about 337.3569200553.
The spelling of 38394487 in words is "thirty-eight million, three hundred ninety-four thousand, four hundred eighty-seven".
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