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48665425709 = 81457597437
BaseRepresentation
bin101101010100101011…
…110111011100101101
311122121120120202212102
4231110223313130231
51244131322110314
634205004544445
73341655202415
oct552453673455
9148546522772
1048665425709
111970340069a
129521b52125
13478741a9b4
1424d93ad645
1513ec6255de
hexb54af772d

48665425709 has 4 divisors (see below), whose sum is σ = 48666104604. Its totient is φ = 48664746816.

The previous prime is 48665425661. The next prime is 48665425727. The reversal of 48665425709 is 90752456684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2335015684 + 46330410025 = 48322^2 + 215245^2 .

It is a cyclic number.

It is not a de Polignac number, because 48665425709 - 216 = 48665360173 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 (48665425729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217262 + ... + 380175.

It is an arithmetic number, because the mean of its divisors is an integer number (12166526151).

Almost surely, 248665425709 is an apocalyptic number.

It is an amenable number.

48665425709 is a deficient number, since it is larger than the sum of its proper divisors (678895).

48665425709 is an equidigital number, since it uses as much as digits as its factorization.

48665425709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678894.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 48665425709 in words is "forty-eight billion, six hundred sixty-five million, four hundred twenty-five thousand, seven hundred nine".

Divisors: 1 81457 597437 48665425709