Base | Representation |
---|---|
bin | 10111010001001… |
… | …100011010011100 |
3 | 1000012120112011021 |
4 | 113101030122130 |
5 | 1244414231020 |
6 | 102423133524 |
7 | 12450126421 |
oct | 2721143234 |
9 | 1005515137 |
10 | 390383260 |
11 | 1903a77a3 |
12 | aa8a42a4 |
13 | 62b55317 |
14 | 39bbdd48 |
15 | 244141aa |
hex | 1744c69c |
390383260 has 24 divisors (see below), whose sum is σ = 820715616. Its totient is φ = 155979840.
The previous prime is 390383251. The next prime is 390383267. The reversal of 390383260 is 62383093.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (390383267) 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, 8449 + ... + 29191.
It is an arithmetic number, because the mean of its divisors is an integer number (34196484).
Almost surely, 2390383260 is an apocalyptic number.
It is an amenable number.
390383260 is an abundant number, since it is smaller than the sum of its proper divisors (430332356).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
390383260 is a wasteful number, since it uses less digits than its factorization.
390383260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21693 (or 21691 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 34.
The square root of 390383260 is about 19758.1188375817. The cubic root of 390383260 is about 730.8536083322.
The spelling of 390383260 in words is "three hundred ninety million, three hundred eighty-three thousand, two hundred sixty".
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