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8066552845 = 513811715289
BaseRepresentation
bin1111000001100110…
…11101010000001101
3202211011122100020111
413200303131100031
5113010014142340
63412234120021
7403616365531
oct74063352015
922734570214
108066552845
11346a3a45aa
121691580011
139b72758c0
1456746dbc1
15323294aea
hex1e0cdd40d

8066552845 has 16 divisors (see below), whose sum is σ = 10426434480. Its totient is φ = 5955715584.

The previous prime is 8066552843. The next prime is 8066552849. The reversal of 8066552845 is 5482556608.

It can be written as a sum of positive squares in 8 ways, for example, as 9156676 + 8057396169 = 3026^2 + 89763^2 .

It is not a de Polignac number, because 8066552845 - 21 = 8066552843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8066552843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519961 + ... + 535249.

It is an arithmetic number, because the mean of its divisors is an integer number (651652155).

Almost surely, 28066552845 is an apocalyptic number.

It is an amenable number.

8066552845 is a deficient number, since it is larger than the sum of its proper divisors (2359881635).

8066552845 is a wasteful number, since it uses less digits than its factorization.

8066552845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23424.

The product of its (nonzero) digits is 2304000, while the sum is 49.

The square root of 8066552845 is about 89813.9902520760. The cubic root of 8066552845 is about 2005.5307616559.

The spelling of 8066552845 in words is "eight billion, sixty-six million, five hundred fifty-two thousand, eight hundred forty-five".

Divisors: 1 5 13 65 8117 15289 40585 76445 105521 198757 527605 993785 124100813 620504065 1613310569 8066552845