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2871022005 = 325971374801
BaseRepresentation
bin1010101100100000…
…0101000110110101
321102002100000210100
42223020011012311
521334440201010
61152515544313
7131101166355
oct25310050665
97362300710
102871022005
111243687365
126815bb099
13369a65cb7
141d3430b65
1511c0b82c0
hexab2051b5

2871022005 has 48 divisors (see below), whose sum is σ = 5065495344. Its totient is φ = 1504051200.

The previous prime is 2871021983. The next prime is 2871022013. The reversal of 2871022005 is 5002201782.

It can be written as a sum of positive squares in 8 ways, for example, as 527076 + 2870494929 = 726^2 + 53577^2 .

It is not a de Polignac number, because 2871022005 - 25 = 2871021973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2871022005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 595605 + ... + 600405.

It is an arithmetic number, because the mean of its divisors is an integer number (105531153).

Almost surely, 22871022005 is an apocalyptic number.

It is an amenable number.

2871022005 is a deficient number, since it is larger than the sum of its proper divisors (2194473339).

2871022005 is a wasteful number, since it uses less digits than its factorization.

2871022005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5043 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2871022005 is about 53581.9186386602. The cubic root of 2871022005 is about 1421.2773675875.

Adding to 2871022005 its reverse (5002201782), we get a palindrome (7873223787).

The spelling of 2871022005 in words is "two billion, eight hundred seventy-one million, twenty-two thousand, five".

Divisors: 1 3 5 9 15 45 97 137 291 411 485 685 873 1233 1455 2055 4365 4801 6165 13289 14403 24005 39867 43209 66445 72015 119601 199335 216045 465697 598005 657737 1397091 1973211 2328485 3288685 4191273 5919633 6985455 9866055 20956365 29598165 63800489 191401467 319002445 574204401 957007335 2871022005