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10389725 = 52735693
BaseRepresentation
bin100111101000…
…100011011101
3201112212000122
4213220203131
510124432400
61010404325
7154211513
oct47504335
921485018
1010389725
115956a55
1235906a5
1321ca088
1415464b3
15da3685
hex9e88dd

10389725 has 12 divisors (see below), whose sum is σ = 13062036. Its totient is φ = 8196480.

The previous prime is 10389719. The next prime is 10389727. The reversal of 10389725 is 52798301.

It can be written as a sum of positive squares in 6 ways, for example, as 1038361 + 9351364 = 1019^2 + 3058^2 .

It is not a de Polignac number, because 10389725 - 28 = 10389469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10389727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1022 + ... + 4671.

It is an arithmetic number, because the mean of its divisors is an integer number (1088503).

Almost surely, 210389725 is an apocalyptic number.

It is an amenable number.

10389725 is a deficient number, since it is larger than the sum of its proper divisors (2672311).

10389725 is an equidigital number, since it uses as much as digits as its factorization.

10389725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776 (or 5771 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 10389725 is about 3223.3096345216. The cubic root of 10389725 is about 218.2066679135.

The spelling of 10389725 in words is "ten million, three hundred eighty-nine thousand, seven hundred twenty-five".

Divisors: 1 5 25 73 365 1825 5693 28465 142325 415589 2077945 10389725