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1980430848 = 29321189439
BaseRepresentation
bin111011000001010…
…1111101000000000
312010000112022101200
41312002233220000
513023442241343
6524303301200
7100035245604
oct16602575000
95100468350
101980430848
119269a1010
124732aa800
132573b5096
1414b043504
15b8ce94d3
hex760afa00

1980430848 has 240 divisors, whose sum is σ = 6319684800. Its totient is φ = 592035840.

The previous prime is 1980430843. The next prime is 1980430853. The reversal of 1980430848 is 8480340891.

It is an interprime number because it is at equal distance from previous prime (1980430843) and next prime (1980430853).

It is not an unprimeable number, because it can be changed into a prime (1980430841) 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 23 ways as a sum of consecutive naturals, for example, 4511013 + ... + 4511451.

It is an arithmetic number, because the mean of its divisors is an integer number (26332020).

Almost surely, 21980430848 is an apocalyptic number.

1980430848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980430848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3159842400).

1980430848 is an abundant number, since it is smaller than the sum of its proper divisors (4339253952).

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

1980430848 is a wasteful number, since it uses less digits than its factorization.

1980430848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1980430848 is about 44502.0319536086. The cubic root of 1980430848 is about 1255.7983096698.

The spelling of 1980430848 in words is "one billion, nine hundred eighty million, four hundred thirty thousand, eight hundred forty-eight".