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4728125 = 551789
BaseRepresentation
bin10010000010010100111101
322220012202202
4102002110331
52202300000
6245201245
755121423
oct22022475
98805682
104728125
11273a346
121700225
13c9710c
148b1113
15635dd5
hex48253d

4728125 has 24 divisors (see below), whose sum is σ = 6327720. Its totient is φ = 3520000.

The previous prime is 4728121. The next prime is 4728127. The reversal of 4728125 is 5218274.

It can be written as a sum of positive squares in 12 ways, for example, as 4726276 + 1849 = 2174^2 + 43^2 .

It is not a de Polignac number, because 4728125 - 22 = 4728121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4728121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53081 + ... + 53169.

It is an arithmetic number, because the mean of its divisors is an integer number (263655).

Almost surely, 24728125 is an apocalyptic number.

It is an amenable number.

4728125 is a deficient number, since it is larger than the sum of its proper divisors (1599595).

4728125 is an frugal number, since it uses more digits than its factorization.

4728125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 111 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 4728125 is about 2174.4252114065. The cubic root of 4728125 is about 167.8403268416.

The spelling of 4728125 in words is "four million, seven hundred twenty-eight thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 89 125 425 445 625 1513 2125 2225 3125 7565 10625 11125 37825 53125 55625 189125 278125 945625 4728125