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395228305 = 5253131231
BaseRepresentation
bin10111100011101…
…011010010010001
31000112200200022101
4113203223102101
51302134301210
6103115040401
712536246053
oct2743532221
91015620271
10395228305
1119310696a
12b0440101
1363b60704
143a6c18d3
1524a6ea3a
hex178eb491

395228305 has 8 divisors (see below), whose sum is σ = 474476544. Its totient is φ = 316047600.

The previous prime is 395228303. The next prime is 395228341. The reversal of 395228305 is 503822593.

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

It is not a de Polignac number, because 395228305 - 21 = 395228303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395228303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2961 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (59309568).

Almost surely, 2395228305 is an apocalyptic number.

It is an amenable number.

395228305 is a deficient number, since it is larger than the sum of its proper divisors (79248239).

395228305 is a wasteful number, since it uses less digits than its factorization.

395228305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33767.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 395228305 is about 19880.3497202640. The cubic root of 395228305 is about 733.8647258424.

The spelling of 395228305 in words is "three hundred ninety-five million, two hundred twenty-eight thousand, three hundred five".

Divisors: 1 5 2531 12655 31231 156155 79045661 395228305