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2130325 = 5285213
BaseRepresentation
bin1000001000000110010101
311000020020221
420020012111
51021132300
6113354341
724051601
oct10100625
94006227
102130325
1112255aa
128689b1
13597862
143d6501
152c131a
hex208195

2130325 has 6 divisors (see below), whose sum is σ = 2641634. Its totient is φ = 1704240.

The previous prime is 2130307. The next prime is 2130341. The reversal of 2130325 is 5230312.

It can be written as a sum of positive squares in 3 ways, for example, as 108241 + 2022084 = 329^2 + 1422^2 .

It is a de Polignac number, because none of the positive numbers 2k-2130325 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2130299 and 2130308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42582 + ... + 42631.

22130325 is an apocalyptic number.

2130325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2130325 is a deficient number, since it is larger than the sum of its proper divisors (511309).

2130325 is an equidigital number, since it uses as much as digits as its factorization.

2130325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85223 (or 85218 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2130325 is about 1459.5632908511. The cubic root of 2130325 is about 128.6713787757.

Adding to 2130325 its reverse (5230312), we get a palindrome (7360637).

The spelling of 2130325 in words is "two million, one hundred thirty thousand, three hundred twenty-five".

Divisors: 1 5 25 85213 426065 2130325