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571428872 = 23710204087
BaseRepresentation
bin100010000011110…
…101000000001000
31110211020121001022
4202003311000020
52132241210442
6132411412012
720106031250
oct4203650010
91424217038
10571428872
11273613a73
1213b454008
13915040c1
1455c6a960
15352773d2
hex220f5008

571428872 has 16 divisors (see below), whose sum is σ = 1224490560. Its totient is φ = 244898064.

The previous prime is 571428853. The next prime is 571428877. The reversal of 571428872 is 278824175.

It is not an unprimeable number, because it can be changed into a prime (571428877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5101988 + ... + 5102099.

It is an arithmetic number, because the mean of its divisors is an integer number (76530660).

Almost surely, 2571428872 is an apocalyptic number.

It is an amenable number.

571428872 is an abundant number, since it is smaller than the sum of its proper divisors (653061688).

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

571428872 is a wasteful number, since it uses less digits than its factorization.

571428872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10204100 (or 10204096 counting only the distinct ones).

The product of its digits is 250880, while the sum is 44.

The square root of 571428872 is about 23904.5784735895. The cubic root of 571428872 is about 829.8266788625.

The spelling of 571428872 in words is "five hundred seventy-one million, four hundred twenty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 10204087 20408174 40816348 71428609 81632696 142857218 285714436 571428872