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5728254181 = 132741160757
BaseRepresentation
bin1010101010110111…
…00011100011100101
3112210012201110111021
411111123203203211
543212413113211
62344224211141
7261644233336
oct52533434345
915705643437
105728254181
11247a4a5171
12113a469ab1
137039b1420
143c4ab228d
15237d5a771
hex1556e38e5

5728254181 has 8 divisors (see below), whose sum is σ = 6171178104. Its totient is φ = 5285657280.

The previous prime is 5728254179. The next prime is 5728254221. The reversal of 5728254181 is 1814528275.

It can be written as a sum of positive squares in 4 ways, for example, as 473454081 + 5254800100 = 21759^2 + 72490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5728254181 - 21 = 5728254179 is a prime.

It is a super-2 number, since 2×57282541812 = 65625791924287961522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5728254131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44746 + ... + 116011.

It is an arithmetic number, because the mean of its divisors is an integer number (771397263).

Almost surely, 25728254181 is an apocalyptic number.

It is an amenable number.

5728254181 is a deficient number, since it is larger than the sum of its proper divisors (442923923).

5728254181 is a wasteful number, since it uses less digits than its factorization.

5728254181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163511.

The product of its digits is 179200, while the sum is 43.

The square root of 5728254181 is about 75685.2309304794. The cubic root of 5728254181 is about 1789.2626386736.

The spelling of 5728254181 in words is "five billion, seven hundred twenty-eight million, two hundred fifty-four thousand, one hundred eighty-one".

Divisors: 1 13 2741 35633 160757 2089841 440634937 5728254181