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8396828209 = 721115578531
BaseRepresentation
bin1111101000111110…
…10110111000110001
3210200012010001212101
413310133112320301
5114144042000314
63505113100401
7415036601500
oct76437267061
923605101771
108396828209
113619877350
1217640b7701
13a3a813b03
14599284837
15342284174
hex1f47d6e31

8396828209 has 12 divisors (see below), whose sum is σ = 10655715888. Its totient is φ = 6542982600.

The previous prime is 8396828203. The next prime is 8396828239. The reversal of 8396828209 is 9028286938.

It is not a de Polignac number, because 8396828209 - 25 = 8396828177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8396828209.

It is not an unprimeable number, because it can be changed into a prime (8396828203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7788727 + ... + 7789804.

It is an arithmetic number, because the mean of its divisors is an integer number (887976324).

Almost surely, 28396828209 is an apocalyptic number.

It is an amenable number.

8396828209 is a deficient number, since it is larger than the sum of its proper divisors (2258887679).

8396828209 is a wasteful number, since it uses less digits than its factorization.

8396828209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15578556 (or 15578549 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 8396828209 is about 91634.2087268723. The cubic root of 8396828209 is about 2032.5368245294.

The spelling of 8396828209 in words is "eight billion, three hundred ninety-six million, eight hundred twenty-eight thousand, two hundred nine".

Divisors: 1 7 11 49 77 539 15578531 109049717 171363841 763348019 1199546887 8396828209