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388525 = 5215541
BaseRepresentation
bin1011110110110101101
3201201221211
41132312231
544413100
612154421
73205504
oct1366655
9651854
10388525
112459a5
12168a11
13107ac7
14a183b
157a1ba
hex5edad

388525 has 6 divisors (see below), whose sum is σ = 481802. Its totient is φ = 310800.

The previous prime is 388519. The next prime is 388529. The reversal of 388525 is 525883.

It can be written as a sum of positive squares in 3 ways, for example, as 59049 + 329476 = 243^2 + 574^2 .

It is not a de Polignac number, because 388525 - 213 = 380333 is a prime.

It is a Duffinian number.

388525 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388529) 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 5 ways as a sum of consecutive naturals, for example, 7746 + ... + 7795.

2388525 is an apocalyptic number.

It is an amenable number.

388525 is a deficient number, since it is larger than the sum of its proper divisors (93277).

388525 is a wasteful number, since it uses less digits than its factorization.

388525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15551 (or 15546 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 388525 is about 623.3177359902. The cubic root of 388525 is about 72.9692120122.

The spelling of 388525 in words is "three hundred eighty-eight thousand, five hundred twenty-five".

Divisors: 1 5 25 15541 77705 388525