Base | Representation |
---|---|
bin | 10111010111111… |
… | …011110000110001 |
3 | 1000022220021202111 |
4 | 113113323300301 |
5 | 1300342300230 |
6 | 102525045321 |
7 | 12501135436 |
oct | 2727736061 |
9 | 1008807674 |
10 | 392150065 |
11 | 1913a416a |
12 | ab3b6841 |
13 | 63323578 |
14 | 3a11db8d |
15 | 2466292a |
hex | 175fbc31 |
392150065 has 4 divisors (see below), whose sum is σ = 470580084. Its totient is φ = 313720048.
The previous prime is 392150053. The next prime is 392150071. The reversal of 392150065 is 560051293.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560051293 = 433 ⋅1293421.
It can be written as a sum of positive squares in 2 ways, for example, as 228130816 + 164019249 = 15104^2 + 12807^2 .
It is a cyclic number.
It is not a de Polignac number, because 392150065 - 29 = 392149553 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
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, 39215002 + ... + 39215011.
It is an arithmetic number, because the mean of its divisors is an integer number (117645021).
Almost surely, 2392150065 is an apocalyptic number.
It is an amenable number.
392150065 is a deficient number, since it is larger than the sum of its proper divisors (78430019).
392150065 is an equidigital number, since it uses as much as digits as its factorization.
392150065 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78430018.
The product of its (nonzero) digits is 8100, while the sum is 31.
The square root of 392150065 is about 19802.7792241392. The cubic root of 392150065 is about 731.9545201769.
The spelling of 392150065 in words is "three hundred ninety-two million, one hundred fifty thousand, sixty-five".
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