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1305241325 = 5252209653
BaseRepresentation
bin100110111001100…
…0110011011101101
310100222001010111022
41031303012123231
510133120210300
6333303503525
744226240203
oct11563063355
93328033438
101305241325
1160a858143
12305157ba5
1317a55185b
14c54c7073
15798c8285
hex4dcc66ed

1305241325 has 6 divisors (see below), whose sum is σ = 1618499274. Its totient is φ = 1044193040.

The previous prime is 1305241297. The next prime is 1305241363. The reversal of 1305241325 is 5231425031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 28536964 + 1276704361 = 5342^2 + 35731^2 .

It is not a de Polignac number, because 1305241325 - 214 = 1305224941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305241294 and 1305241303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26104802 + ... + 26104851.

It is an arithmetic number, because the mean of its divisors is an integer number (269749879).

Almost surely, 21305241325 is an apocalyptic number.

It is an amenable number.

1305241325 is a deficient number, since it is larger than the sum of its proper divisors (313257949).

1305241325 is an equidigital number, since it uses as much as digits as its factorization.

1305241325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52209663 (or 52209658 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1305241325 is about 36128.1237403771. The cubic root of 1305241325 is about 1092.8576713268.

Adding to 1305241325 its reverse (5231425031), we get a palindrome (6536666356).

The spelling of 1305241325 in words is "one billion, three hundred five million, two hundred forty-one thousand, three hundred twenty-five".

Divisors: 1 5 25 52209653 261048265 1305241325