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12115054441 = 72247246009
BaseRepresentation
bin10110100100001110…
…10000111101101001
31011021022121112101001
423102013100331221
5144302423220231
65322055355001
7606136156300
oct132207207551
934238545331
1012115054441
1151576a5796
122421382a61
1311b0c49689
1482d00b437
154ad8eab61
hex2d21d0f69

12115054441 has 6 divisors (see below), whose sum is σ = 14093022570. Its totient is φ = 10384332336.

The previous prime is 12115054429. The next prime is 12115054451. The reversal of 12115054441 is 14445051121.

12115054441 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 only one way, i.e., 6869094400 + 5245960041 = 82880^2 + 72429^2 .

It is not a de Polignac number, because 12115054441 - 27 = 12115054313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12115054451) 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 5 ways as a sum of consecutive naturals, for example, 123622956 + ... + 123623053.

It is an arithmetic number, because the mean of its divisors is an integer number (2348837095).

Almost surely, 212115054441 is an apocalyptic number.

It is an amenable number.

12115054441 is a deficient number, since it is larger than the sum of its proper divisors (1977968129).

12115054441 is an equidigital number, since it uses as much as digits as its factorization.

12115054441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247246023 (or 247246016 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 12115054441 in words is "twelve billion, one hundred fifteen million, fifty-four thousand, four hundred forty-one".

Divisors: 1 7 49 247246009 1730722063 12115054441