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5187157144 = 2313293170227
BaseRepresentation
bin1001101010010110…
…11011110010011000
3111101111112212220021
410311023123302120
541110403012034
62214414440224
7242354052061
oct46513336230
914344485807
105187157144
112222018a34
121009203074
1364886a370
14372c9d568
152055c56b4
hex1352dbc98

5187157144 has 32 divisors (see below), whose sum is σ = 10509876720. Its totient is φ = 2385887616.

The previous prime is 5187157097. The next prime is 5187157163. The reversal of 5187157144 is 4417517815.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5187157144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54642 + ... + 115585.

Almost surely, 25187157144 is an apocalyptic number.

It is an amenable number.

5187157144 is an abundant number, since it is smaller than the sum of its proper divisors (5322719576).

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

5187157144 is a wasteful number, since it uses less digits than its factorization.

5187157144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170539 (or 170535 counting only the distinct ones).

The product of its digits is 156800, while the sum is 43.

The square root of 5187157144 is about 72021.9212740121. The cubic root of 5187157144 is about 1731.0507548570.

The spelling of 5187157144 in words is "five billion, one hundred eighty-seven million, one hundred fifty-seven thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 26 52 104 293 586 1172 2344 3809 7618 15236 30472 170227 340454 680908 1361816 2212951 4425902 8851804 17703608 49876511 99753022 199506044 399012088 648394643 1296789286 2593578572 5187157144