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820080360 = 2332511415051
BaseRepresentation
bin110000111000010…
…110111011101000
32010011010101202200
4300320112323220
53134420032420
6213213100200
726215365561
oct6070267350
92104111680
10820080360
11390a06570
121aa787660
13100b93a68
147acb5168
154bee1b90
hex30e16ee8

820080360 has 192 divisors, whose sum is σ = 2979063360. Its totient is φ = 193920000.

The previous prime is 820080347. The next prime is 820080361. The reversal of 820080360 is 63080028.

820080360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (820080361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159835 + ... + 164885.

It is an arithmetic number, because the mean of its divisors is an integer number (15515955).

Almost surely, 2820080360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 820080360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1489531680).

820080360 is an abundant number, since it is smaller than the sum of its proper divisors (2158983000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

820080360 is a wasteful number, since it uses less digits than its factorization.

820080360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120 (or 5113 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 820080360 is about 28637.0452386415. The cubic root of 820080360 is about 936.0207369940.

The spelling of 820080360 in words is "eight hundred twenty million, eighty thousand, three hundred sixty".