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8568745420 = 2252949130089
BaseRepresentation
bin1111111101011110…
…01010110111001100
3211010011121100221111
413332233022313030
5120022044323140
63534133541404
7422225064034
oct77657126714
924104540844
108568745420
1136a7919294
1217b17a4864
13a67317981
145b40368c4
153523e27ea
hex1febcadcc

8568745420 has 48 divisors (see below), whose sum is σ = 18653392800. Its totient is φ = 3302458880.

The previous prime is 8568745411. The next prime is 8568745421. The reversal of 8568745420 is 245478658.

It is not an unprimeable number, because it can be changed into a prime (8568745421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269736 + ... + 299824.

It is an arithmetic number, because the mean of its divisors is an integer number (388612350).

Almost surely, 28568745420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8568745420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9326696400).

8568745420 is an abundant number, since it is smaller than the sum of its proper divisors (10084647380).

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

8568745420 is a wasteful number, since it uses less digits than its factorization.

8568745420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30618 (or 30616 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 49.

The square root of 8568745420 is about 92567.5181691721. The cubic root of 8568745420 is about 2046.3146493696.

The spelling of 8568745420 in words is "eight billion, five hundred sixty-eight million, seven hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 491 580 982 1964 2455 4910 9820 14239 28478 30089 56956 60178 71195 120356 142390 150445 284780 300890 601780 872581 1745162 3490324 4362905 8725810 14773699 17451620 29547398 59094796 73868495 147736990 295473980 428437271 856874542 1713749084 2142186355 4284372710 8568745420