Base | Representation |
---|---|
bin | 10110111110111… |
… | …110001110110100 |
3 | 222212120211210012 |
4 | 112332332032310 |
5 | 1242203402310 |
6 | 102132515352 |
7 | 12361413302 |
oct | 2676761664 |
9 | 885524705 |
10 | 385606580 |
11 | 188734a27 |
12 | a917bb58 |
13 | 61b72098 |
14 | 392d9272 |
15 | 23cbdc05 |
hex | 16fbe3b4 |
385606580 has 24 divisors (see below), whose sum is σ = 857408328. Its totient is φ = 145169408.
The previous prime is 385606579. The next prime is 385606583. The reversal of 385606580 is 85606583.
It can be written as a sum of positive squares in 4 ways, for example, as 5044516 + 380562064 = 2246^2 + 19508^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385606583) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566729 + ... + 567408.
It is an arithmetic number, because the mean of its divisors is an integer number (35725347).
Almost surely, 2385606580 is an apocalyptic number.
It is an amenable number.
385606580 is an abundant number, since it is smaller than the sum of its proper divisors (471801748).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385606580 is a wasteful number, since it uses less digits than its factorization.
385606580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1134163 (or 1134161 counting only the distinct ones).
The product of its (nonzero) digits is 172800, while the sum is 41.
The square root of 385606580 is about 19636.8678765225. The cubic root of 385606580 is about 727.8604898106.
The spelling of 385606580 in words is "three hundred eighty-five million, six hundred six thousand, five hundred eighty".
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