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8068260565 = 512941124693
BaseRepresentation
bin1111000001110011…
…11110001011010101
3202211021212002210101
413200321332023111
5113010433314230
63412334454101
7403640040361
oct74071761325
922737762711
108068260565
113470360642
121692064331
139b7722ca1
145677962a1
153234d0aca
hex1e0e7e2d5

8068260565 has 8 divisors (see below), whose sum is σ = 9682738488. Its totient is φ = 6454057920.

The previous prime is 8068260547. The next prime is 8068260637. The reversal of 8068260565 is 5650628608.

It can be written as a sum of positive squares in 4 ways, for example, as 725655844 + 7342604721 = 26938^2 + 85689^2 .

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

It is not a de Polignac number, because 8068260565 - 229 = 7531389653 is a prime.

It is a Duffinian number.

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, 2359 + ... + 127051.

It is an arithmetic number, because the mean of its divisors is an integer number (1210342311).

Almost surely, 28068260565 is an apocalyptic number.

It is an amenable number.

8068260565 is a deficient number, since it is larger than the sum of its proper divisors (1614477923).

8068260565 is a wasteful number, since it uses less digits than its factorization.

8068260565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137639.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 8068260565 is about 89823.4967310892. The cubic root of 8068260565 is about 2005.6722778400.

The spelling of 8068260565 in words is "eight billion, sixty-eight million, two hundred sixty thousand, five hundred sixty-five".

Divisors: 1 5 12941 64705 124693 623465 1613652113 8068260565