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12660577244 = 227452163473
BaseRepresentation
bin10111100101010000…
…10001001111011100
31012200100002221222022
423302220101033130
5201412101432434
65452144035312
7625512062630
oct136250211734
935610087868
1012660577244
115407625087
122554002b38
131269c80033
14881652dc0
154e175722e
hex2f2a113dc

12660577244 has 12 divisors (see below), whose sum is σ = 25321154544. Its totient is φ = 5425961664.

The previous prime is 12660577207. The next prime is 12660577261. The reversal of 12660577244 is 44277506621.

It is a happy number.

12660577244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

12660577244 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12660577195 and 12660577204.

It is a congruent number.

It is an unprimeable number.

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, 226081709 + ... + 226081764.

It is an arithmetic number, because the mean of its divisors is an integer number (2110096212).

Almost surely, 212660577244 is an apocalyptic number.

12660577244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12660577244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12660577244 is a wasteful number, since it uses less digits than its factorization.

12660577244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452163484 (or 452163482 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 12660577244 in words is "twelve billion, six hundred sixty million, five hundred seventy-seven thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 452163473 904326946 1808653892 3165144311 6330288622 12660577244