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5144931111 = 323149500431
BaseRepresentation
bin1001100101010100…
…10110101100100111
3111021120002120200010
410302222112230213
541014100243421
62210305421303
7241332123105
oct46252265447
914246076603
105144931111
1122001a7991
12bb703a833
1363cba4548
1436b42ac75
15201a34076
hex132a96b27

5144931111 has 16 divisors (see below), whose sum is σ = 7206220800. Its totient is φ = 3258800160.

The previous prime is 5144931109. The next prime is 5144931161. The reversal of 5144931111 is 1111394415.

It is not a de Polignac number, because 5144931111 - 21 = 5144931109 is a prime.

It is a super-2 number, since 2×51449311112 = 52940632273871388642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144931101) 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 15 ways as a sum of consecutive naturals, for example, 239935 + ... + 260496.

It is an arithmetic number, because the mean of its divisors is an integer number (450388800).

Almost surely, 25144931111 is an apocalyptic number.

5144931111 is a deficient number, since it is larger than the sum of its proper divisors (2061289689).

5144931111 is a wasteful number, since it uses less digits than its factorization.

5144931111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500606.

The product of its digits is 2160, while the sum is 30.

The square root of 5144931111 is about 71728.1751545374. The cubic root of 5144931111 is about 1726.3407470136.

The spelling of 5144931111 in words is "five billion, one hundred forty-four million, nine hundred thirty-one thousand, one hundred eleven".

Divisors: 1 3 23 69 149 447 3427 10281 500431 1501293 11509913 34529739 74564219 223692657 1714977037 5144931111