Base | Representation |
---|---|
bin | 10111000011110… |
… | …010110110011000 |
3 | 222221222001210201 |
4 | 113003302312120 |
5 | 1243014330210 |
6 | 102215551544 |
7 | 12405226600 |
oct | 2703626630 |
9 | 887861721 |
10 | 386870680 |
11 | 189418739 |
12 | a968b5b4 |
13 | 621c5581 |
14 | 39547c00 |
15 | 23e6d53a |
hex | 170f2d98 |
386870680 has 48 divisors (see below), whose sum is σ = 1012579920. Its totient is φ = 132640704.
The previous prime is 386870651. The next prime is 386870681. The reversal of 386870680 is 86078683.
It is a self number, because there is not a number n which added to its sum of digits gives 386870680.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (386870681) 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, 96732 + ... + 100651.
It is an arithmetic number, because the mean of its divisors is an integer number (21095415).
Almost surely, 2386870680 is an apocalyptic number.
It is an amenable number.
386870680 is an abundant number, since it is smaller than the sum of its proper divisors (625709240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
386870680 is a wasteful number, since it uses less digits than its factorization.
386870680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 197408 (or 197397 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 46.
The square root of 386870680 is about 19669.0284457571. The cubic root of 386870680 is about 728.6549825268.
The spelling of 386870680 in words is "three hundred eighty-six million, eight hundred seventy thousand, six hundred eighty".
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