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11668419373 = 132459336497
BaseRepresentation
bin10101101110111110…
…11111001100101101
31010010012012010020111
422313133133030231
5142344103404443
65205502420021
7562103633242
oct126737371455
933105163214
1011668419373
114a485781a6
122317891611
13113c55a480
147c99875c9
154845c469d
hex2b77df32d

11668419373 has 8 divisors (see below), whose sum is σ = 12566845368. Its totient is φ = 10770115584.

The previous prime is 11668419359. The next prime is 11668419397. The reversal of 11668419373 is 37391486611.

It can be written as a sum of positive squares in 4 ways, for example, as 1260747049 + 10407672324 = 35507^2 + 102018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11668419373 - 25 = 11668419341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668410373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301461 + ... + 337957.

It is an arithmetic number, because the mean of its divisors is an integer number (1570855671).

Almost surely, 211668419373 is an apocalyptic number.

11668419373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11668419373 is a deficient number, since it is larger than the sum of its proper divisors (898425995).

11668419373 is a wasteful number, since it uses less digits than its factorization.

11668419373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61103.

The product of its digits is 653184, while the sum is 49.

The spelling of 11668419373 in words is "eleven billion, six hundred sixty-eight million, four hundred nineteen thousand, three hundred seventy-three".

Divisors: 1 13 24593 36497 319709 474461 897570721 11668419373