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13030321834 = 26515160917
BaseRepresentation
bin11000010001010101…
…01110111010101010
31020122002211221012101
430020222232322222
5203141230244314
65552553004014
7640621623325
oct141052567252
936562757171
1013030321834
115587305722
1226379b360a
1312c875a30a
148b87bd7bc
15513e41174
hex308aaeeaa

13030321834 has 4 divisors (see below), whose sum is σ = 19545482754. Its totient is φ = 6515160916.

The previous prime is 13030321831. The next prime is 13030321849. The reversal of 13030321834 is 43812303031.

13030321834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12720456225 + 309865609 = 112785^2 + 17603^2 .

It is a super-3 number, since 3×130303218343 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13030321831) 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 as a sum of consecutive naturals, namely, 3257580457 + ... + 3257580460.

Almost surely, 213030321834 is an apocalyptic number.

13030321834 is a deficient number, since it is larger than the sum of its proper divisors (6515160920).

13030321834 is an equidigital number, since it uses as much as digits as its factorization.

13030321834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515160919.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13030321834 its reverse (43812303031), we get a palindrome (56842624865).

The spelling of 13030321834 in words is "thirteen billion, thirty million, three hundred twenty-one thousand, eight hundred thirty-four".

Divisors: 1 2 6515160917 13030321834