Base | Representation |
---|---|
bin | 1011001101010001010… |
… | …00001010111111000001 |
3 | 1100210221222012102022122 |
4 | 11212220220022333001 |
5 | 22302121241124020 |
6 | 452523122214025 |
7 | 36551446062041 |
oct | 5465050127701 |
9 | 1323858172278 |
10 | 385081192385 |
11 | 13934832642a |
12 | 6276aab4315 |
13 | 2a40b87c326 |
14 | 148d0a75721 |
15 | a03bcc1125 |
hex | 59a8a0afc1 |
385081192385 has 4 divisors (see below), whose sum is σ = 462097430868. Its totient is φ = 308064953904.
The previous prime is 385081192369. The next prime is 385081192409. The reversal of 385081192385 is 583291180583.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583291180583 = 8233 ⋅70847951.
It can be written as a sum of positive squares in 2 ways, for example, as 141036300304 + 244044892081 = 375548^2 + 494009^2 .
It is a cyclic number.
It is not a de Polignac number, because 385081192385 - 24 = 385081192369 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38508119234 + ... + 38508119243.
It is an arithmetic number, because the mean of its divisors is an integer number (115524357717).
Almost surely, 2385081192385 is an apocalyptic number.
It is an amenable number.
385081192385 is a deficient number, since it is larger than the sum of its proper divisors (77016238483).
385081192385 is an equidigital number, since it uses as much as digits as its factorization.
385081192385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77016238482.
The product of its (nonzero) digits is 2073600, while the sum is 53.
The spelling of 385081192385 in words is "three hundred eighty-five billion, eighty-one million, one hundred ninety-two thousand, three hundred eighty-five".
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