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395620 = 225131151
BaseRepresentation
bin1100000100101100100
3202002200121
41200211210
5100124440
612251324
73235261
oct1404544
9662617
10395620
11250265
12170b44
1310b0c4
14a4268
157c34a
hex60964

395620 has 24 divisors (see below), whose sum is σ = 842688. Its totient is φ = 156000.

The previous prime is 395611. The next prime is 395621. The reversal of 395620 is 26593.

It is not an unprimeable number, because it can be changed into a prime (395621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2545 + ... + 2695.

It is an arithmetic number, because the mean of its divisors is an integer number (35112).

2395620 is an apocalyptic number.

It is an amenable number.

395620 is an abundant number, since it is smaller than the sum of its proper divisors (447068).

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

395620 is a wasteful number, since it uses less digits than its factorization.

395620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 395620 is about 628.9833066147. The cubic root of 395620 is about 73.4107080478.

The spelling of 395620 in words is "three hundred ninety-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 131 151 262 302 524 604 655 755 1310 1510 2620 3020 19781 39562 79124 98905 197810 395620