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395265140 = 22520819497
BaseRepresentation
bin10111100011110…
…100010001110100
31000112202112211122
4113203310101310
51302141441030
6103115523112
712536461334
oct2743642164
91015675748
10395265140
11193131606
12b0459498
1363b743ca
143a6d10c4
1524a7a8e5
hex178f4474

395265140 has 24 divisors (see below), whose sum is σ = 830543112. Its totient is φ = 158013440.

The previous prime is 395265127. The next prime is 395265163. The reversal of 395265140 is 41562593.

It can be written as a sum of positive squares in 4 ways, for example, as 209764 + 395055376 = 458^2 + 19876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 395265140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36872 + ... + 46368.

It is an arithmetic number, because the mean of its divisors is an integer number (34605963).

Almost surely, 2395265140 is an apocalyptic number.

It is an amenable number.

395265140 is an abundant number, since it is smaller than the sum of its proper divisors (435277972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395265140 is a wasteful number, since it uses less digits than its factorization.

395265140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11587 (or 11585 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 395265140 is about 19881.2761159841. The cubic root of 395265140 is about 733.8875236929.

The spelling of 395265140 in words is "three hundred ninety-five million, two hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2081 4162 8324 9497 10405 18994 20810 37988 41620 47485 94970 189940 19763257 39526514 79053028 98816285 197632570 395265140