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538150625 = 544121001
BaseRepresentation
bin100000000100111…
…000011011100001
31101111121212212122
4200010320123201
52100231310000
6125222234025
716223130155
oct4004703341
91344555778
10538150625
11256854591
12130285915
1387651c2c
1451687065
15323a2085
hex201386e1

538150625 has 20 divisors (see below), whose sum is σ = 688907604. Its totient is φ = 420000000.

The previous prime is 538150621. The next prime is 538150643. The reversal of 538150625 is 526051835.

It can be written as a sum of positive squares in 10 ways, for example, as 535644736 + 2505889 = 23144^2 + 1583^2 .

It is not a de Polignac number, because 538150625 - 22 = 538150621 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (538150621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15125 + ... + 36125.

Almost surely, 2538150625 is an apocalyptic number.

It is an amenable number.

538150625 is a deficient number, since it is larger than the sum of its proper divisors (150756979).

538150625 is an equidigital number, since it uses as much as digits as its factorization.

538150625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21062 (or 21047 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 538150625 is about 23198.0737346875. The cubic root of 538150625 is about 813.3945965043.

The spelling of 538150625 in words is "five hundred thirty-eight million, one hundred fifty thousand, six hundred twenty-five".

Divisors: 1 5 25 41 125 205 625 1025 5125 21001 25625 105005 525025 861041 2625125 4305205 13125625 21526025 107630125 538150625