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395449541 = 7313739541
BaseRepresentation
bin10111100100100…
…001010011000101
31000120002220210022
4113210201103011
51302213341131
6103123504525
712541160054
oct2744412305
91016086708
10395449541
11193248103
12b0528145
1363c0a316
143a73c39b
1524ab537b
hex179214c5

395449541 has 8 divisors (see below), whose sum is σ = 403802904. Its totient is φ = 387175680.

The previous prime is 395449531. The next prime is 395449567. The reversal of 395449541 is 145944593.

It can be written as a sum of positive squares in 4 ways, for example, as 5387041 + 390062500 = 2321^2 + 19750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-395449541 is a prime.

It is a super-2 number, since 2×3954495412 = 312760678954221362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395449492 and 395449501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395449531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9770 + ... + 29771.

It is an arithmetic number, because the mean of its divisors is an integer number (50475363).

Almost surely, 2395449541 is an apocalyptic number.

It is an amenable number.

395449541 is a deficient number, since it is larger than the sum of its proper divisors (8353363).

395449541 is a wasteful number, since it uses less digits than its factorization.

395449541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39751.

The product of its digits is 388800, while the sum is 44.

The square root of 395449541 is about 19885.9131296503. The cubic root of 395449541 is about 734.0016315327.

The spelling of 395449541 in words is "three hundred ninety-five million, four hundred forty-nine thousand, five hundred forty-one".

Divisors: 1 73 137 10001 39541 2886493 5417117 395449541