Base | Representation |
---|---|
bin | 10110111111001… |
… | …010110100001101 |
3 | 222212200110111021 |
4 | 112333022310031 |
5 | 1242212030000 |
6 | 102133554141 |
7 | 12362016466 |
oct | 2677126415 |
9 | 885613437 |
10 | 385658125 |
11 | 18876a726 |
12 | a91a5951 |
13 | 61b8c698 |
14 | 3930dd6d |
15 | 23cce11a |
hex | 16fcad0d |
385658125 has 10 divisors (see below), whose sum is σ = 481919174. Its totient is φ = 308526000.
The previous prime is 385658123. The next prime is 385658159. The reversal of 385658125 is 521856583.
It can be written as a sum of positive squares in 5 ways, for example, as 276789769 + 108868356 = 16637^2 + 10434^2 .
It is not a de Polignac number, because 385658125 - 21 = 385658123 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385658123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 307902 + ... + 309151.
Almost surely, 2385658125 is an apocalyptic number.
It is an amenable number.
385658125 is a deficient number, since it is larger than the sum of its proper divisors (96261049).
385658125 is an frugal number, since it uses more digits than its factorization.
385658125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 617073 (or 617058 counting only the distinct ones).
The product of its digits is 288000, while the sum is 43.
The square root of 385658125 is about 19638.1802873892. The cubic root of 385658125 is about 727.8929200122.
The spelling of 385658125 in words is "three hundred eighty-five million, six hundred fifty-eight thousand, one hundred twenty-five".
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