Search a number
-
+
385625 = 54617
BaseRepresentation
bin1011110001001011001
3201120222102
41132021121
544320000
612133145
73164162
oct1361131
9646872
10385625
112437a9
121671b5
131066a6
14a0769
15793d5
hex5e259

385625 has 10 divisors (see below), whose sum is σ = 482658. Its totient is φ = 308000.

The previous prime is 385621. The next prime is 385631. The reversal of 385625 is 526583.

It can be written as a sum of positive squares in 5 ways, for example, as 267289 + 118336 = 517^2 + 344^2 .

It is not a de Polignac number, because 385625 - 22 = 385621 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (385621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 317 + ... + 933.

2385625 is an apocalyptic number.

It is an amenable number.

385625 is a deficient number, since it is larger than the sum of its proper divisors (97033).

385625 is an frugal number, since it uses more digits than its factorization.

385625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 622 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 385625 is about 620.9871174187. The cubic root of 385625 is about 72.7872079323.

The spelling of 385625 in words is "three hundred eighty-five thousand, six hundred twenty-five".

Divisors: 1 5 25 125 617 625 3085 15425 77125 385625