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1808308582642 = 21349516699871
BaseRepresentation
bin11010010100000111100…
…101110011100011110010
320101212120010121220011201
4122110013211303203302
5214111403444121032
63502420412401414
7244434400225042
oct32240745634362
96355503556151
101808308582642
11637999063811
12252566a7626a
131016a469c7b3
1463746041722
15320891aa8e7
hex1a5079738f2

1808308582642 has 8 divisors (see below), whose sum is σ = 2712483378432. Its totient is φ = 904147456500.

The previous prime is 1808308582609. The next prime is 1808308582709. The reversal of 1808308582642 is 2462858038081.

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

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, 3080034 + ... + 3619837.

It is an arithmetic number, because the mean of its divisors is an integer number (339060422304).

Almost surely, 21808308582642 is an apocalyptic number.

1808308582642 is a deficient number, since it is larger than the sum of its proper divisors (904174795790).

1808308582642 is a wasteful number, since it uses less digits than its factorization.

1808308582642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834824.

The product of its (nonzero) digits is 5898240, while the sum is 55.

The spelling of 1808308582642 in words is "one trillion, eight hundred eight billion, three hundred eight million, five hundred eighty-two thousand, six hundred forty-two".

Divisors: 1 2 134951 269902 6699871 13399742 904154291321 1808308582642