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5489131218 = 2310933125357
BaseRepresentation
bin1010001110010110…
…10111111011010010
3112011112202202110020
411013023113323102
542220204144333
62304403044310
7253011563004
oct50713277322
915145682406
105489131218
11236752058a
121092370696
136962a984c
143a1028374
15221d743b3
hex1472d7ed2

5489131218 has 32 divisors (see below), whose sum is σ = 11112889920. Its totient is φ = 1807375680.

The previous prime is 5489131211. The next prime is 5489131231. The reversal of 5489131218 is 8121319845.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5489131218.

It is not an unprimeable number, because it can be changed into a prime (5489131211) 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 15 ways as a sum of consecutive naturals, for example, 203796 + ... + 229152.

It is an arithmetic number, because the mean of its divisors is an integer number (347277810).

Almost surely, 25489131218 is an apocalyptic number.

5489131218 is an abundant number, since it is smaller than the sum of its proper divisors (5623758702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5489131218 is a wasteful number, since it uses less digits than its factorization.

5489131218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25802.

The product of its digits is 69120, while the sum is 42.

The square root of 5489131218 is about 74088.6713202498. The cubic root of 5489131218 is about 1764.0106558609.

The spelling of 5489131218 in words is "five billion, four hundred eighty-nine million, one hundred thirty-one thousand, two hundred eighteen".

Divisors: 1 2 3 6 109 218 327 331 654 662 993 1986 25357 36079 50714 72158 76071 108237 152142 216474 2763913 5527826 8291739 8393167 16583478 16786334 25179501 50359002 914855203 1829710406 2744565609 5489131218