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13440211232 = 25760000943
BaseRepresentation
bin11001000010001100…
…10101100100100000
31021200200010110202012
430201012111210200
5210011143224412
610101354212052
7654026624210
oct144106254440
937620113665
1013440211232
115777715698
122731124028
131362652016
14916dda240
15539e09c22
hex321195920

13440211232 has 24 divisors (see below), whose sum is σ = 30240475776. Its totient is φ = 5760090432.

The previous prime is 13440211229. The next prime is 13440211273. The reversal of 13440211232 is 23211204431.

It is a junction number, because it is equal to n+sod(n) for n = 13440211198 and 13440211207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30000248 + ... + 30000695.

It is an arithmetic number, because the mean of its divisors is an integer number (1260019824).

Almost surely, 213440211232 is an apocalyptic number.

It is an amenable number.

13440211232 is an abundant number, since it is smaller than the sum of its proper divisors (16800264544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13440211232 is an equidigital number, since it uses as much as digits as its factorization.

13440211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000960 (or 60000952 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13440211232 its reverse (23211204431), we get a palindrome (36651415663).

The spelling of 13440211232 in words is "thirteen billion, four hundred forty million, two hundred eleven thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 60000943 120001886 240003772 420006601 480007544 840013202 960015088 1680026404 1920030176 3360052808 6720105616 13440211232