Base | Representation |
---|---|
bin | 10111000110000… |
… | …110101110100100 |
3 | 1000000002211200100 |
4 | 113012012232210 |
5 | 1243143221023 |
6 | 102240544100 |
7 | 12413331525 |
oct | 2706065644 |
9 | 1000084610 |
10 | 387476388 |
11 | 1897a1822 |
12 | a9922030 |
13 | 62378190 |
14 | 3966484c |
15 | 2403cc43 |
hex | 17186ba4 |
387476388 has 36 divisors (see below), whose sum is σ = 1054798108. Its totient is φ = 119223360.
The previous prime is 387476387. The next prime is 387476389. The reversal of 387476388 is 883674783.
It is an interprime number because it is at equal distance from previous prime (387476387) and next prime (387476389).
It can be written as a sum of positive squares in 2 ways, for example, as 125619264 + 261857124 = 11208^2 + 16182^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (387476381) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413503 + ... + 414438.
Almost surely, 2387476388 is an apocalyptic number.
It is an amenable number.
387476388 is an abundant number, since it is smaller than the sum of its proper divisors (667321720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387476388 is a wasteful number, since it uses less digits than its factorization.
387476388 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 827964 (or 827959 counting only the distinct ones).
The product of its digits is 5419008, while the sum is 54.
The square root of 387476388 is about 19684.4199304933. The cubic root of 387476388 is about 729.0350595907.
The spelling of 387476388 in words is "three hundred eighty-seven million, four hundred seventy-six thousand, three hundred eighty-eight".
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