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1304034321 = 31987218761
BaseRepresentation
bin100110110111001…
…1111110000010001
310100212202210210110
41031232133300101
510132313044241
6333221551533
744213052222
oct11556376021
93325683713
101304034321
1160a103317
123048755a9
1317a21b355
14c5291249
157973a816
hex4db9fc11

1304034321 has 8 divisors (see below), whose sum is σ = 1739595424. Its totient is φ = 868914720.

The previous prime is 1304034293. The next prime is 1304034367. The reversal of 1304034321 is 1234304031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1304034321 - 26 = 1304034257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1304034421) 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 7 ways as a sum of consecutive naturals, for example, 103420 + ... + 115341.

It is an arithmetic number, because the mean of its divisors is an integer number (217449428).

Almost surely, 21304034321 is an apocalyptic number.

It is an amenable number.

1304034321 is a deficient number, since it is larger than the sum of its proper divisors (435561103).

1304034321 is a wasteful number, since it uses less digits than its factorization.

1304034321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220751.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1304034321 is about 36111.4153835044. The cubic root of 1304034321 is about 1092.5206990582.

Adding to 1304034321 its reverse (1234304031), we get a palindrome (2538338352).

The spelling of 1304034321 in words is "one billion, three hundred four million, thirty-four thousand, three hundred twenty-one".

Divisors: 1 3 1987 5961 218761 656283 434678107 1304034321