Search a number
-
+
395375129 = 232747401
BaseRepresentation
bin10111100100001…
…111001000011001
31000112222010201022
4113210033020121
51302204001004
6103122132225
712540430112
oct2744171031
91015863638
10395375129
111931a7206
12b04b1075
1363bb24a6
143a71d209
1524a9d2be
hex1790f219

395375129 has 6 divisors (see below), whose sum is σ = 413313306. Its totient is φ = 378184400.

The previous prime is 395375089. The next prime is 395375131. The reversal of 395375129 is 921573593.

It can be written as a sum of positive squares in only one way, i.e., 368832025 + 26543104 = 19205^2 + 5152^2 .

It is not a de Polignac number, because 395375129 - 212 = 395371033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 395375129.

It is not an unprimeable number, because it can be changed into a prime (395371129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 373172 + ... + 374229.

It is an arithmetic number, because the mean of its divisors is an integer number (68885551).

Almost surely, 2395375129 is an apocalyptic number.

It is an amenable number.

395375129 is a deficient number, since it is larger than the sum of its proper divisors (17938177).

395375129 is an equidigital number, since it uses as much as digits as its factorization.

395375129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747447 (or 747424 counting only the distinct ones).

The product of its digits is 255150, while the sum is 44.

The square root of 395375129 is about 19884.0420689557. The cubic root of 395375129 is about 733.9555894549.

The spelling of 395375129 in words is "three hundred ninety-five million, three hundred seventy-five thousand, one hundred twenty-nine".

Divisors: 1 23 529 747401 17190223 395375129