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11688374241749 = 193119844438441
BaseRepresentation
bin1010101000010110100101…
…1001010000100111010101
31112101101201220020100212102
42222011221121100213111
53013000242301213444
640505322012331445
72314312544534042
oct252055131204725
945341656210772
1011688374241749
1137a70145a9337
121389350a73b85
1366a29411c6aa
142c5a1283a1c9
15154094cb784e
hexaa1696509d5

11688374241749 has 8 divisors (see below), whose sum is σ = 12700440602880. Its totient is φ = 10715996757600.

The previous prime is 11688374241601. The next prime is 11688374241757. The reversal of 11688374241749 is 94714247388611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11688374241749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11688374241769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9922218632 + ... + 9922219809.

It is an arithmetic number, because the mean of its divisors is an integer number (1587555075360).

Almost surely, 211688374241749 is an apocalyptic number.

11688374241749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11688374241749 is a deficient number, since it is larger than the sum of its proper divisors (1012066361131).

11688374241749 is a wasteful number, since it uses less digits than its factorization.

11688374241749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19844438491.

The product of its digits is 65028096, while the sum is 65.

The spelling of 11688374241749 in words is "eleven trillion, six hundred eighty-eight billion, three hundred seventy-four million, two hundred forty-one thousand, seven hundred forty-nine".

Divisors: 1 19 31 589 19844438441 377044330379 615177591671 11688374241749