Base | Representation |
---|---|
bin | 1011111111101001110 |
3 | 201222010222 |
4 | 1133331032 |
5 | 100034123 |
6 | 12231342 |
7 | 3224612 |
oct | 1377516 |
9 | 658128 |
10 | 393038 |
11 | 249328 |
12 | 16b552 |
13 | 109b89 |
14 | a3342 |
15 | 7b6c8 |
hex | 5ff4e |
393038 has 4 divisors (see below), whose sum is σ = 589560. Its totient is φ = 196518.
The previous prime is 393031. The next prime is 393059. The reversal of 393038 is 830393.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830393 = 61 ⋅13613.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 392998 and 393016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (393031) by changing a digit.
393038 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98258 + ... + 98261.
It is an arithmetic number, because the mean of its divisors is an integer number (147390).
2393038 is an apocalyptic number.
393038 is a deficient number, since it is larger than the sum of its proper divisors (196522).
393038 is a wasteful number, since it uses less digits than its factorization.
393038 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 196521.
The product of its (nonzero) digits is 1944, while the sum is 26.
The square root of 393038 is about 626.9274280170. The cubic root of 393038 is about 73.2506552144.
The spelling of 393038 in words is "three hundred ninety-three thousand, thirty-eight".
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