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15334120321 = 137611549997
BaseRepresentation
bin11100100011111110…
…00001101110000001
31110120122212000121021
432101333001232001
5222401013322241
611013331225441
71051664605102
oct162177015601
943518760537
1015334120321
116559790613
122b7b448281
1315a4b323a0
14a5675a3a9
155eb3130d1
hex391fc1b81

15334120321 has 8 divisors (see below), whose sum is σ = 16535378664. Its totient is φ = 14135963520.

The previous prime is 15334120303. The next prime is 15334120349. The reversal of 15334120321 is 12302143351.

It is a happy number.

15334120321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 149719696 + 15184400625 = 12236^2 + 123225^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15334120321 - 215 = 15334087553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15334120121) 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, 765106 + ... + 784891.

It is an arithmetic number, because the mean of its divisors is an integer number (2066922333).

Almost surely, 215334120321 is an apocalyptic number.

It is an amenable number.

15334120321 is a deficient number, since it is larger than the sum of its proper divisors (1201258343).

15334120321 is a wasteful number, since it uses less digits than its factorization.

15334120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550771.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 15334120321 its reverse (12302143351), we get a palindrome (27636263672).

The spelling of 15334120321 in words is "fifteen billion, three hundred thirty-four million, one hundred twenty thousand, three hundred twenty-one".

Divisors: 1 13 761 9893 1549997 20149961 1179547717 15334120321