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10203125 = 56653
BaseRepresentation
bin100110111010…
…111111110101
3201012101001112
4212322333311
510103000000
61002404405
7152503502
oct46727765
921171045
1010203125
115839839
123500705
13216316a
1414d84a9
15d68235
hex9baff5

10203125 has 14 divisors (see below), whose sum is σ = 12773274. Its totient is φ = 8150000.

The previous prime is 10203119. The next prime is 10203181. The reversal of 10203125 is 52130201.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 9897316 + 305809 = 3146^2 + 553^2 .

It is not a de Polignac number, because 10203125 - 214 = 10186741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15299 + ... + 15951.

Almost surely, 210203125 is an apocalyptic number.

It is an amenable number.

10203125 is a deficient number, since it is larger than the sum of its proper divisors (2570149).

10203125 is an frugal number, since it uses more digits than its factorization.

10203125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 10203125 is about 3194.2330847952. The cubic root of 10203125 is about 216.8924339646.

Adding to 10203125 its reverse (52130201), we get a palindrome (62333326).

The spelling of 10203125 in words is "ten million, two hundred three thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 653 3125 3265 15625 16325 81625 408125 2040625 10203125