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65003047105 = 513000609421
BaseRepresentation
bin111100100010011110…
…111100100011000001
320012210011200221011011
4330202132330203001
52031111240001410
645510104520521
74460556532603
oct744236744301
9205704627134
1065003047105
1125627586437
1210721480141
13618c1149a9
143209109173
151a56aac18a
hexf227bc8c1

65003047105 has 4 divisors (see below), whose sum is σ = 78003656532. Its totient is φ = 52002437680.

The previous prime is 65003047069. The next prime is 65003047121. The reversal of 65003047105 is 50174030056.

65003047105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17576660929 + 47426386176 = 132577^2 + 217776^2 .

It is not a de Polignac number, because 65003047105 - 29 = 65003046593 is a prime.

It is a super-2 number, since 2×650030471052 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6500304706 + ... + 6500304715.

It is an arithmetic number, because the mean of its divisors is an integer number (19500914133).

Almost surely, 265003047105 is an apocalyptic number.

It is an amenable number.

65003047105 is a deficient number, since it is larger than the sum of its proper divisors (13000609427).

65003047105 is a wasteful number, since it uses less digits than its factorization.

65003047105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13000609426.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 65003047105 in words is "sixty-five billion, three million, forty-seven thousand, one hundred five".

Divisors: 1 5 13000609421 65003047105