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5184287821 = 31491340601
BaseRepresentation
bin1001101010000000…
…11111010001001101
3111101022011002221001
410311000133101031
541104134202241
62214233140301
7242320501516
oct46500372115
914338132831
105184287821
112220439199
12100825a691
136480a433b
14372753a0d
1520520a431
hex13501f44d

5184287821 has 8 divisors (see below), whose sum is σ = 5362437888. Its totient is φ = 5006820000.

The previous prime is 5184287813. The next prime is 5184287827. The reversal of 5184287821 is 1287824815.

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 5184287821 - 23 = 5184287813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5184287827) 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, 155080 + ... + 185521.

It is an arithmetic number, because the mean of its divisors is an integer number (670304736).

Almost surely, 25184287821 is an apocalyptic number.

It is an amenable number.

5184287821 is a deficient number, since it is larger than the sum of its proper divisors (178150067).

5184287821 is a wasteful number, since it uses less digits than its factorization.

5184287821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341123.

The product of its digits is 286720, while the sum is 46.

The square root of 5184287821 is about 72001.9987292020. The cubic root of 5184287821 is about 1730.7315138466.

The spelling of 5184287821 in words is "five billion, one hundred eighty-four million, two hundred eighty-seven thousand, eight hundred twenty-one".

Divisors: 1 31 491 15221 340601 10558631 167235091 5184287821