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5128188825 = 352193598729
BaseRepresentation
bin1001100011010100…
…11111001110011001
3111020101120222120110
410301222133032121
541000304020300
62204510514533
7241036612554
oct46152371631
914211528513
105128188825
1121a1802191
12bb1505a49
13639591b76
1436910d69b
15200328550
hex131a9f399

5128188825 has 24 divisors (see below), whose sum is σ = 8924850400. Its totient is φ = 2591084160.

The previous prime is 5128188817. The next prime is 5128188827. The reversal of 5128188825 is 5288818215.

It is not a de Polignac number, because 5128188825 - 23 = 5128188817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5128188827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1797940 + ... + 1800789.

Almost surely, 25128188825 is an apocalyptic number.

It is an amenable number.

5128188825 is a deficient number, since it is larger than the sum of its proper divisors (3796661575).

5128188825 is a wasteful number, since it uses less digits than its factorization.

5128188825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3598761 (or 3598756 counting only the distinct ones).

The product of its digits is 409600, while the sum is 48.

The square root of 5128188825 is about 71611.3735729179. The cubic root of 5128188825 is about 1724.4661317872.

The spelling of 5128188825 in words is "five billion, one hundred twenty-eight million, one hundred eighty-eight thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425 3598729 10796187 17993645 53980935 68375851 89968225 205127553 269904675 341879255 1025637765 1709396275 5128188825