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49168064765 = 590977108089
BaseRepresentation
bin101101110010101001…
…010010000011111101
311200220121101111000202
4231302221102003331
51301144011033030
634330522133245
73360300440411
oct556251220375
9150817344022
1049168064765
11199410aa876
129642351225
1348375b8061
142546050d41
15142b810745
hexb72a520fd

49168064765 has 8 divisors (see below), whose sum is σ = 59002872120. Its totient is φ = 39333655552.

The previous prime is 49168064719. The next prime is 49168064807. The reversal of 49168064765 is 56746086194.

It can be written as a sum of positive squares in 4 ways, for example, as 430438009 + 48737626756 = 20747^2 + 220766^2 .

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 49168064765 - 220 = 49167016189 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49168064765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400841 + ... + 508929.

It is an arithmetic number, because the mean of its divisors is an integer number (7375359015).

Almost surely, 249168064765 is an apocalyptic number.

It is an amenable number.

49168064765 is a deficient number, since it is larger than the sum of its proper divisors (9834807355).

49168064765 is a wasteful number, since it uses less digits than its factorization.

49168064765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199071.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 49168064765 in words is "forty-nine billion, one hundred sixty-eight million, sixty-four thousand, seven hundred sixty-five".

Divisors: 1 5 90977 108089 454885 540445 9833612953 49168064765