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1304325 = 3252111731
BaseRepresentation
bin100111110011100000101
32110021012100
410332130011
5313214300
643542313
714041461
oct4763405
92407170
101304325
11810a60
1252a999
133688b9
1425d4a1
151ab700
hex13e705

1304325 has 72 divisors (see below), whose sum is σ = 2785536. Its totient is φ = 576000.

The previous prime is 1304321. The next prime is 1304357. The reversal of 1304325 is 5234031.

It is not a de Polignac number, because 1304325 - 22 = 1304321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304298 and 1304307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42060 + ... + 42090.

It is an arithmetic number, because the mean of its divisors is an integer number (38688).

21304325 is an apocalyptic number.

1304325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304325 is an abundant number, since it is smaller than the sum of its proper divisors (1481211).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1304325 is a wasteful number, since it uses less digits than its factorization.

1304325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1304325 is about 1142.0704881924. The cubic root of 1304325 is about 109.2601870038.

Adding to 1304325 its reverse (5234031), we get a palindrome (6538356).

The spelling of 1304325 in words is "one million, three hundred four thousand, three hundred twenty-five".

Divisors: 1 3 5 9 11 15 17 25 31 33 45 51 55 75 85 93 99 153 155 165 187 225 255 275 279 341 425 465 495 527 561 765 775 825 935 1023 1275 1395 1581 1683 1705 2325 2475 2635 2805 3069 3825 4675 4743 5115 5797 6975 7905 8415 8525 13175 14025 15345 17391 23715 25575 28985 39525 42075 52173 76725 86955 118575 144925 260865 434775 1304325