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4971408445 = 5113173181281
BaseRepresentation
bin1001010000101000…
…11010110000111101
3110211110120201022201
410220110122300331
540140140032240
62141150311501
7234124163113
oct45024326075
913743521281
104971408445
112121259823
12b68ab8591
13612c5aa03
1435237bab3
151e16a9d9a
hex12851ac3d

4971408445 has 32 divisors (see below), whose sum is σ = 6108377184. Its totient is φ = 3883622400.

The previous prime is 4971408419. The next prime is 4971408451. The reversal of 4971408445 is 5448041794.

It can be written as a sum of positive squares in 16 ways, for example, as 2558437561 + 2412970884 = 50581^2 + 49122^2 .

It is not a de Polignac number, because 4971408445 - 223 = 4963019837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4971408395 and 4971408404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17691705 + ... + 17691985.

It is an arithmetic number, because the mean of its divisors is an integer number (190886787).

Almost surely, 24971408445 is an apocalyptic number.

It is an amenable number.

4971408445 is a deficient number, since it is larger than the sum of its proper divisors (1136968739).

4971408445 is a wasteful number, since it uses less digits than its factorization.

4971408445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 4971408445 is about 70508.2154433084. The cubic root of 4971408445 is about 1706.7103227045.

The spelling of 4971408445 in words is "four billion, nine hundred seventy-one million, four hundred eight thousand, four hundred forty-five".

Divisors: 1 5 113 173 181 281 565 865 905 1405 19549 20453 31313 31753 48613 50861 97745 102265 156565 158765 243065 254305 3538369 5493269 5747293 8798953 17691845 27466345 28736465 43994765 994281689 4971408445