Base | Representation |
---|---|
bin | 10111000100110… |
… | …110001011110000 |
3 | 222222111002010112 |
4 | 113010312023300 |
5 | 1243102141410 |
6 | 102225520452 |
7 | 12410455640 |
oct | 2704661360 |
9 | 888432115 |
10 | 387146480 |
11 | 189596976 |
12 | a97a3128 |
13 | 62290c76 |
14 | 395ba520 |
15 | 23ec5105 |
hex | 171362f0 |
387146480 has 40 divisors (see below), whose sum is σ = 1028704992. Its totient is φ = 132735744.
The previous prime is 387146479. The next prime is 387146483. The reversal of 387146480 is 84641783.
It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (387146483) 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, 345107 + ... + 346226.
Almost surely, 2387146480 is an apocalyptic number.
It is an amenable number.
387146480 is an abundant number, since it is smaller than the sum of its proper divisors (641558512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387146480 is a wasteful number, since it uses less digits than its factorization.
387146480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 691353 (or 691347 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 41.
The square root of 387146480 is about 19676.0382191131. The cubic root of 387146480 is about 728.8280940409.
The spelling of 387146480 in words is "three hundred eighty-seven million, one hundred forty-six thousand, four hundred eighty".
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