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5172228271 = 72293639851
BaseRepresentation
bin1001101000100100…
…11111000010101111
3111100110110102100001
410310102133002233
541043042301041
62213122445131
7242113133500
oct46422370257
914313412301
105172228271
112214651721
1210042037a7
13645741202
14370cd4ba7
15204127131
hex13449f0af

5172228271 has 12 divisors (see below), whose sum is σ = 6224146920. Its totient is φ = 4280463600.

The previous prime is 5172228233. The next prime is 5172228311. The reversal of 5172228271 is 1728222715.

It is not a de Polignac number, because 5172228271 - 215 = 5172195503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5172228271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172228071) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1818505 + ... + 1821346.

It is an arithmetic number, because the mean of its divisors is an integer number (518678910).

Almost surely, 25172228271 is an apocalyptic number.

5172228271 is a deficient number, since it is larger than the sum of its proper divisors (1051918649).

5172228271 is a wasteful number, since it uses less digits than its factorization.

5172228271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639894 (or 3639887 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 5172228271 is about 71918.2054211588. The cubic root of 5172228271 is about 1729.3884783301.

The spelling of 5172228271 in words is "five billion, one hundred seventy-two million, two hundred twenty-eight thousand, two hundred seventy-one".

Divisors: 1 7 29 49 203 1421 3639851 25478957 105555679 178352699 738889753 5172228271