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13232211021 = 3219132758313
BaseRepresentation
bin11000101001011001…
…11000010001001101
31021011011201222002200
430110230320101031
5204044421223041
610025004112113
7645622636461
oct142454702115
937134658080
1013232211021
115680268a97
122693535639
13132b526483
148d75344a1
15526a201b6
hex314b3844d

13232211021 has 24 divisors (see below), whose sum is σ = 20134657920. Its totient is φ = 8350744896.

The previous prime is 13232211011. The next prime is 13232211023. The reversal of 13232211021 is 12011223231.

It is not a de Polignac number, because 13232211021 - 210 = 13232209997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13232210985 and 13232211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13232211023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197761 + ... + 256073.

It is an arithmetic number, because the mean of its divisors is an integer number (838944080).

Almost surely, 213232211021 is an apocalyptic number.

It is an amenable number.

13232211021 is a deficient number, since it is larger than the sum of its proper divisors (6902446899).

13232211021 is a wasteful number, since it uses less digits than its factorization.

13232211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59665 (or 59662 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13232211021 its reverse (12011223231), we get a palindrome (25243434252).

The spelling of 13232211021 in words is "thirteen billion, two hundred thirty-two million, two hundred eleven thousand, twenty-one".

Divisors: 1 3 9 19 57 171 1327 3981 11943 25213 58313 75639 174939 226917 524817 1107947 3323841 9971523 77381351 232144053 696432159 1470245669 4410737007 13232211021