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12001330446 = 237285745963
BaseRepresentation
bin10110010110101010…
…11100010100001110
31010222101121202101020
423023111130110032
5144034320033241
65302514055010
7603255424410
oct131325342416
933871552336
1012001330446
1150a9490216
1223ab27a466
13119350c281
1481bc869b0
154a3934b66
hex2cb55c50e

12001330446 has 16 divisors (see below), whose sum is σ = 27431612544. Its totient is φ = 3428951544.

The previous prime is 12001330417. The next prime is 12001330447. The reversal of 12001330446 is 64403310021.

12001330446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001330447) 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, 142872940 + ... + 142873023.

It is an arithmetic number, because the mean of its divisors is an integer number (1714475784).

Almost surely, 212001330446 is an apocalyptic number.

12001330446 is an abundant number, since it is smaller than the sum of its proper divisors (15430282098).

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

12001330446 is a wasteful number, since it uses less digits than its factorization.

12001330446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285745975.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12001330446 its reverse (64403310021), we get a palindrome (76404640467).

The spelling of 12001330446 in words is "twelve billion, one million, three hundred thirty thousand, four hundred forty-six".

Divisors: 1 2 3 6 7 14 21 42 285745963 571491926 857237889 1714475778 2000221741 4000443482 6000665223 12001330446