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387625 = 537443
BaseRepresentation
bin1011110101000101001
3201200201111
41132220221
544401000
612150321
73203050
oct1365051
9650644
10387625
11245257
121683a1
13107584
14a1397
1579cba
hex5ea29

387625 has 16 divisors (see below), whose sum is σ = 554112. Its totient is φ = 265200.

The previous prime is 387623. The next prime is 387631. The reversal of 387625 is 526783.

It is not a de Polignac number, because 387625 - 21 = 387623 is a prime.

It is a d-powerful number, because it can be written as 33 + 86 + 65 + 76 + 22 + 52 .

It is a Duffinian number.

387625 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (387623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654 + ... + 1096.

It is an arithmetic number, because the mean of its divisors is an integer number (34632).

2387625 is an apocalyptic number.

387625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

387625 is a deficient number, since it is larger than the sum of its proper divisors (166487).

387625 is an equidigital number, since it uses as much as digits as its factorization.

387625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 387625 is about 622.5953742199. The cubic root of 387625 is about 72.9128251944.

The spelling of 387625 in words is "three hundred eighty-seven thousand, six hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 443 875 2215 3101 11075 15505 55375 77525 387625