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52123131532 = 22121710707299
BaseRepresentation
bin110000100010110001…
…111101111010001100
311222112112212102120001
4300202301331322030
51323222010202112
635540043334044
73523442210413
oct604261757214
9158475772501
1052123131532
112011817020a
12a127b21324
134bb8899484
1427466bc47a
151550e7ac57
hexc22c7de8c

52123131532 has 12 divisors (see below), whose sum is σ = 91290439800. Its totient is φ = 26040148736.

The previous prime is 52123131493. The next prime is 52123131539. The reversal of 52123131532 is 23513132125.

52123131532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52123131532.

It is not an unprimeable number, because it can be changed into a prime (52123131539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5348782 + ... + 5358517.

It is an arithmetic number, because the mean of its divisors is an integer number (7607536650).

Almost surely, 252123131532 is an apocalyptic number.

It is an amenable number.

52123131532 is a deficient number, since it is larger than the sum of its proper divisors (39167308268).

52123131532 is a wasteful number, since it uses less digits than its factorization.

52123131532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10708520 (or 10708518 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

Adding to 52123131532 its reverse (23513132125), we get a palindrome (75636263657).

The spelling of 52123131532 in words is "fifty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, five hundred thirty-two".

Divisors: 1 2 4 1217 2434 4868 10707299 21414598 42829196 13030782883 26061565766 52123131532