Base | Representation |
---|---|
bin | 10111011000101… |
… | …100100110000101 |
3 | 1000100021110010122 |
4 | 113120230212011 |
5 | 1300420200320 |
6 | 102533231325 |
7 | 12502630541 |
oct | 2730544605 |
9 | 1010243118 |
10 | 392350085 |
11 | 191520476 |
12 | ab492545 |
13 | 6339361a |
14 | 3a172a21 |
15 | 246a1d25 |
hex | 1762c985 |
392350085 has 4 divisors (see below), whose sum is σ = 470820108. Its totient is φ = 313880064.
The previous prime is 392350073. The next prime is 392350087. The reversal of 392350085 is 580053293.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580053293 = 4871 ⋅119083.
It can be written as a sum of positive squares in 2 ways, for example, as 273670849 + 118679236 = 16543^2 + 10894^2 .
It is a cyclic number.
It is not a de Polignac number, because 392350085 - 228 = 123914629 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (392350087) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39235004 + ... + 39235013.
It is an arithmetic number, because the mean of its divisors is an integer number (117705027).
Almost surely, 2392350085 is an apocalyptic number.
It is an amenable number.
392350085 is a deficient number, since it is larger than the sum of its proper divisors (78470023).
392350085 is an equidigital number, since it uses as much as digits as its factorization.
392350085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78470022.
The product of its (nonzero) digits is 32400, while the sum is 35.
The square root of 392350085 is about 19807.8288815307. The cubic root of 392350085 is about 732.0789458933.
The spelling of 392350085 in words is "three hundred ninety-two million, three hundred fifty thousand, eighty-five".
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