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680849850180 = 223511347497503
BaseRepresentation
bin10011110100001011101…
…00000011111101000100
32102002101121002222202210
421322011310003331010
542123340030201210
61240440023103420
7100122044144643
oct11720564037504
92362347088683
10680849850180
11242823a996a5
12abb532a1b70
134c285b7a346
1424d4bc4335a
1512a9cc5de20
hex9e85d03f44

680849850180 has 24 divisors (see below), whose sum is σ = 1906379580672. Its totient is φ = 181559960032.

The previous prime is 680849850157. The next prime is 680849850229. The reversal of 680849850180 is 81058948086.

It is a self number, because there is not a number n which added to its sum of digits gives 680849850180.

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, 5673748692 + ... + 5673748811.

It is an arithmetic number, because the mean of its divisors is an integer number (79432482528).

Almost surely, 2680849850180 is an apocalyptic number.

680849850180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680849850180 is an abundant number, since it is smaller than the sum of its proper divisors (1225529730492).

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

680849850180 is a wasteful number, since it uses less digits than its factorization.

680849850180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347497515 (or 11347497513 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 57.

The spelling of 680849850180 in words is "six hundred eighty billion, eight hundred forty-nine million, eight hundred fifty thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 11347497503 22694995006 34042492509 45389990012 56737487515 68084985018 113474975030 136169970036 170212462545 226949950060 340424925090 680849850180