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20580580716 = 2231715048393
BaseRepresentation
bin10011001010101100…
…101011110101101100
31222010021222211021020
4103022230223311230
5314122112040331
613242105134140
71326002023023
oct231254536554
958107884236
1020580580716
1188012239a3
123ba448a350
131c2ca64517
14dd34558ba
15806beec96
hex4cab2bd6c

20580580716 has 12 divisors (see below), whose sum is σ = 48021355032. Its totient is φ = 6860193568.

The previous prime is 20580580661. The next prime is 20580580789. The reversal of 20580580716 is 61708508502.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 857524185 + ... + 857524208.

It is an arithmetic number, because the mean of its divisors is an integer number (4001779586).

Almost surely, 220580580716 is an apocalyptic number.

It is an amenable number.

20580580716 is an abundant number, since it is smaller than the sum of its proper divisors (27440774316).

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

20580580716 is a wasteful number, since it uses less digits than its factorization.

20580580716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715048400 (or 1715048398 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 20580580716 in words is "twenty billion, five hundred eighty million, five hundred eighty thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 1715048393 3430096786 5145145179 6860193572 10290290358 20580580716