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5489131780 = 2251167372397
BaseRepresentation
bin1010001110010110…
…11000000100000100
3112011112202210020001
411013023120010010
542220204204110
62304403051044
7253011564436
oct50713300404
915145683201
105489131780
112367520a50
121092370a84
136962a9b92
143a1028656
15221d7463a
hex1472d8104

5489131780 has 48 divisors (see below), whose sum is σ = 12762824256. Its totient is φ = 1966250880.

The previous prime is 5489131771. The next prime is 5489131793. The reversal of 5489131780 is 871319845.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5489131780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171459 + ... + 200938.

It is an arithmetic number, because the mean of its divisors is an integer number (265892172).

Almost surely, 25489131780 is an apocalyptic number.

It is an amenable number.

5489131780 is an abundant number, since it is smaller than the sum of its proper divisors (7273692476).

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

5489131780 is a wasteful number, since it uses less digits than its factorization.

5489131780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372484 (or 372482 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 5489131780 is about 74088.6751130023. The cubic root of 5489131780 is about 1764.0107160631.

The spelling of 5489131780 in words is "five billion, four hundred eighty-nine million, one hundred thirty-one thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 67 110 134 220 268 335 670 737 1340 1474 2948 3685 7370 14740 372397 744794 1489588 1861985 3723970 4096367 7447940 8192734 16385468 20481835 24950599 40963670 49901198 81927340 99802396 124752995 249505990 274456589 499011980 548913178 1097826356 1372282945 2744565890 5489131780