Base | Representation |
---|---|
bin | 10111010001001… |
… | …110100011000001 |
3 | 1000012120222011000 |
4 | 113101032203001 |
5 | 1244420021001 |
6 | 102423242213 |
7 | 12450164046 |
oct | 2721164301 |
9 | 1005528130 |
10 | 390392001 |
11 | 19040331a |
12 | aa8a9369 |
13 | 62b592ac |
14 | 39bc31cd |
15 | 24416a86 |
hex | 1744e8c1 |
390392001 has 8 divisors (see below), whose sum is σ = 578358560. Its totient is φ = 260261316.
The previous prime is 390391987. The next prime is 390392027. The reversal of 390392001 is 100293093.
It is not a de Polignac number, because 390392001 - 211 = 390389953 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14458963 = 390392001 / (3 + 9 + 0 + 3 + 9 + 2 + 0 + 0 + 1).
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (390392071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7229455 + ... + 7229508.
It is an arithmetic number, because the mean of its divisors is an integer number (72294820).
Almost surely, 2390392001 is an apocalyptic number.
It is an amenable number.
390392001 is a deficient number, since it is larger than the sum of its proper divisors (187966559).
390392001 is a wasteful number, since it uses less digits than its factorization.
390392001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14458972 (or 14458966 counting only the distinct ones).
The product of its (nonzero) digits is 1458, while the sum is 27.
The square root of 390392001 is about 19758.3400365517. The cubic root of 390392001 is about 730.8590630945.
The spelling of 390392001 in words is "three hundred ninety million, three hundred ninety-two thousand, one".
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