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872284180 = 225353123553
BaseRepresentation
bin110011111111100…
…000000000010100
32020210100121221111
4303333200000110
53241301043210
6222320024404
730421202365
oct6377400024
92223317844
10872284180
11408422019
12204162104
1310b9412b1
1483bc3b6c
15518a488a
hex33fe0014

872284180 has 24 divisors (see below), whose sum is σ = 1837000872. Its totient is φ = 347922432.

The previous prime is 872284159. The next prime is 872284183. The reversal of 872284180 is 81482278.

It can be written as a sum of positive squares in 4 ways, for example, as 9217296 + 863066884 = 3036^2 + 29378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872284183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54717 + ... + 68836.

It is an arithmetic number, because the mean of its divisors is an integer number (76541703).

Almost surely, 2872284180 is an apocalyptic number.

It is an amenable number.

872284180 is an abundant number, since it is smaller than the sum of its proper divisors (964716692).

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

872284180 is a wasteful number, since it uses less digits than its factorization.

872284180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123915 (or 123913 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 872284180 is about 29534.4575030590. The cubic root of 872284180 is about 955.4750083439.

The spelling of 872284180 in words is "eight hundred seventy-two million, two hundred eighty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 353 706 1412 1765 3530 7060 123553 247106 494212 617765 1235530 2471060 43614209 87228418 174456836 218071045 436142090 872284180