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506728425 = 3527965197
BaseRepresentation
bin11110001101000…
…000111111101001
31022022111110201110
4132031000333221
52014210302200
6122140540533
715362056230
oct3615007751
91268443643
10506728425
11240042625
12121851749
1380c9c808
144b427b17
152e746b50
hex1e340fe9

506728425 has 24 divisors (see below), whose sum is σ = 957476416. Its totient is φ = 231647040.

The previous prime is 506728399. The next prime is 506728427. The reversal of 506728425 is 524827605.

506728425 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 506728425 - 210 = 506727401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506728427) 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, 482074 + ... + 483123.

Almost surely, 2506728425 is an apocalyptic number.

It is an amenable number.

506728425 is a deficient number, since it is larger than the sum of its proper divisors (450747991).

506728425 is a wasteful number, since it uses less digits than its factorization.

506728425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965217 (or 965212 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 506728425 is about 22510.6291560232. The cubic root of 506728425 is about 797.2449107669.

The spelling of 506728425 in words is "five hundred six million, seven hundred twenty-eight thousand, four hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 965197 2895591 4825985 6756379 14477955 20269137 24129925 33781895 72389775 101345685 168909475 506728425