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5188125687 = 310061171889
BaseRepresentation
bin1001101010011110…
…01000001111110111
3111101120101002111020
410311033020033313
541111130010222
62214451312223
7242365224603
oct46517101767
914346332436
105188125687
11222261a688
1210095ab673
13648b19174
14373072503
1520571765c
hex1353c83f7

5188125687 has 8 divisors (see below), whose sum is σ = 6918228720. Its totient is φ = 3458386560.

The previous prime is 5188125667. The next prime is 5188125689. The reversal of 5188125687 is 7865218815.

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

It is not a de Polignac number, because 5188125687 - 210 = 5188124663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5188125689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55762 + ... + 116127.

It is an arithmetic number, because the mean of its divisors is an integer number (864778590).

Almost surely, 25188125687 is an apocalyptic number.

5188125687 is a deficient number, since it is larger than the sum of its proper divisors (1730103033).

5188125687 is a wasteful number, since it uses less digits than its factorization.

5188125687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181953.

The product of its digits is 1075200, while the sum is 51.

The square root of 5188125687 is about 72028.6449060372. The cubic root of 5188125687 is about 1731.1584884193.

The spelling of 5188125687 in words is "five billion, one hundred eighty-eight million, one hundred twenty-five thousand, six hundred eighty-seven".

Divisors: 1 3 10061 30183 171889 515667 1729375229 5188125687