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12149784703 = 71735683529
BaseRepresentation
bin10110101000010111…
…10000000001111111
31011100201222000100001
423110023300001333
5144340321102303
65325340015131
7610040315560
oct132413600177
934321860301
1012149784703
115175267091
122430b314a7
1311b81b9724
1483388c167
154b19ab31d
hex2d42f007f

12149784703 has 4 divisors (see below), whose sum is σ = 13885468240. Its totient is φ = 10414101168.

The previous prime is 12149784677. The next prime is 12149784727. The reversal of 12149784703 is 30748794121.

12149784703 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, and also an emirpimes, since its reverse is a distinct semiprime: 30748794121 = 263116915567.

It is a cyclic number.

It is not a de Polignac number, because 12149784703 - 217 = 12149653631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12149784763) 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 3 ways as a sum of consecutive naturals, for example, 867841758 + ... + 867841771.

It is an arithmetic number, because the mean of its divisors is an integer number (3471367060).

Almost surely, 212149784703 is an apocalyptic number.

12149784703 is a deficient number, since it is larger than the sum of its proper divisors (1735683537).

12149784703 is an equidigital number, since it uses as much as digits as its factorization.

12149784703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735683536.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 12149784703 in words is "twelve billion, one hundred forty-nine million, seven hundred eighty-four thousand, seven hundred three".

Divisors: 1 7 1735683529 12149784703