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395468109 = 33197611013
BaseRepresentation
bin10111100100100…
…101110101001101
31000120010212021000
4113210211311031
51302214434414
6103124130513
712541265151
oct2744456515
91016125230
10395468109
11193260053
12b0536a39
1363c158ca
143a745061
1524abab09
hex17925d4d

395468109 has 32 divisors (see below), whose sum is σ = 618134400. Its totient is φ = 249194880.

The previous prime is 395468089. The next prime is 395468111. The reversal of 395468109 is 901864593.

It is a happy number.

It is not a de Polignac number, because 395468109 - 27 = 395467981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395468159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389887 + ... + 390899.

It is an arithmetic number, because the mean of its divisors is an integer number (19316700).

Almost surely, 2395468109 is an apocalyptic number.

It is an amenable number.

395468109 is a deficient number, since it is larger than the sum of its proper divisors (222666291).

395468109 is a wasteful number, since it uses less digits than its factorization.

395468109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 395468109 is about 19886.3799873180. The cubic root of 395468109 is about 734.0131194956.

The spelling of 395468109 in words is "three hundred ninety-five million, four hundred sixty-eight thousand, one hundred nine".

Divisors: 1 3 9 19 27 57 171 513 761 1013 2283 3039 6849 9117 14459 19247 20547 27351 43377 57741 130131 173223 390393 519669 770893 2312679 6938037 14646967 20814111 43940901 131822703 395468109