Base | Representation |
---|---|
bin | 10110111110001… |
… | …001110110000001 |
3 | 222212011221102211 |
4 | 112332021312001 |
5 | 1242130021001 |
6 | 102124142121 |
7 | 12356530561 |
oct | 2676116601 |
9 | 885157384 |
10 | 385392001 |
11 | 1885a8795 |
12 | a9097941 |
13 | 61ac8507 |
14 | 39280da1 |
15 | 23c7a351 |
hex | 16f89d81 |
385392001 has 2 divisors, whose sum is σ = 385392002. Its totient is φ = 385392000.
The previous prime is 385391999. The next prime is 385392089. The reversal of 385392001 is 100293583.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 266472976 + 118919025 = 16324^2 + 10905^2 .
It is a cyclic number.
It is not a de Polignac number, because 385392001 - 21 = 385391999 is a prime.
Together with 385391999, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (385392701) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192696000 + 192696001.
It is an arithmetic number, because the mean of its divisors is an integer number (192696001).
Almost surely, 2385392001 is an apocalyptic number.
It is an amenable number.
385392001 is a deficient number, since it is larger than the sum of its proper divisors (1).
385392001 is an equidigital number, since it uses as much as digits as its factorization.
385392001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6480, while the sum is 31.
The square root of 385392001 is about 19631.4034393876. The cubic root of 385392001 is about 727.7254535987.
The spelling of 385392001 in words is "three hundred eighty-five million, three hundred ninety-two thousand, one".
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