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1020210325 = 5295342821
BaseRepresentation
bin111100110011110…
…010110010010101
32122002201001110121
4330303302302111
54042133212300
6245122351541
734165434061
oct7463626225
92562631417
101020210325
11483978132
122457bb5b1
13133495264
14996ccaa1
155e87481a
hex3ccf2c95

1020210325 has 12 divisors (see below), whose sum is σ = 1266417828. Its totient is φ = 815292800.

The previous prime is 1020210319. The next prime is 1020210329. The reversal of 1020210325 is 5230120201.

It can be written as a sum of positive squares in 6 ways, for example, as 209612484 + 810597841 = 14478^2 + 28471^2 .

It is not a de Polignac number, because 1020210325 - 229 = 483339413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020210299 and 1020210308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020210329) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2415 + ... + 45235.

It is an arithmetic number, because the mean of its divisors is an integer number (105534819).

Almost surely, 21020210325 is an apocalyptic number.

It is an amenable number.

1020210325 is a deficient number, since it is larger than the sum of its proper divisors (246207503).

1020210325 is an equidigital number, since it uses as much as digits as its factorization.

1020210325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43784 (or 43779 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1020210325 is about 31940.7314412178. The cubic root of 1020210325 is about 1006.6918936683.

Adding to 1020210325 its reverse (5230120201), we get a palindrome (6250330526).

The spelling of 1020210325 in words is "one billion, twenty million, two hundred ten thousand, three hundred twenty-five".

Divisors: 1 5 25 953 4765 23825 42821 214105 1070525 40808413 204042065 1020210325