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52271107221 = 3171831355967
BaseRepresentation
bin110000101011100110…
…011100110010010101
311222220212022101001010
4300223212130302111
51324022400412341
640002451122433
73530220036414
oct605346346225
9158825271033
1052271107221
112019374a573
12a1695a3419
134c10439b58
14275c1db47b
15155de5a716
hexc2b99cc95

52271107221 has 16 divisors (see below), whose sum is σ = 73799852544. Its totient is φ = 32795180544.

The previous prime is 52271107211. The next prime is 52271107249. The reversal of 52271107221 is 12270117225.

52271107221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52271107221 - 233 = 43681172629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52271107211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905980 + ... + 961946.

It is an arithmetic number, because the mean of its divisors is an integer number (4612490784).

Almost surely, 252271107221 is an apocalyptic number.

52271107221 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

52271107221 is a deficient number, since it is larger than the sum of its proper divisors (21528745323).

52271107221 is a wasteful number, since it uses less digits than its factorization.

52271107221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74300.

The product of its (nonzero) digits is 3920, while the sum is 30.

The spelling of 52271107221 in words is "fifty-two billion, two hundred seventy-one million, one hundred seven thousand, two hundred twenty-one".

Divisors: 1 3 17 51 18313 54939 55967 167901 311321 933963 951439 2854317 1024923671 3074771013 17423702407 52271107221