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13213113223 = 731237146323
BaseRepresentation
bin11000100111001000…
…00001101110000111
31021002211210200211211
430103210001232013
5204030024110343
610023042512251
7645301415662
oct142344015607
937084720754
1013213113223
115670504592
122689065687
13132759a8bb
148d4ba26d9
15524eeb79d
hex313901b87

13213113223 has 8 divisors (see below), whose sum is σ = 13405034288. Its totient is φ = 13021487424.

The previous prime is 13213113217. The next prime is 13213113227. The reversal of 13213113223 is 32231131231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13213113223 - 25 = 13213113191 is a prime.

It is a super-2 number, since 2×132131132232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13213113194 and 13213113203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213113227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17140 + ... + 163462.

It is an arithmetic number, because the mean of its divisors is an integer number (1675629286).

Almost surely, 213213113223 is an apocalyptic number.

13213113223 is a deficient number, since it is larger than the sum of its proper divisors (191921065).

13213113223 is a wasteful number, since it uses less digits than its factorization.

13213113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147633.

The product of its digits is 648, while the sum is 22.

Adding to 13213113223 its reverse (32231131231), we get a palindrome (45444244454).

The spelling of 13213113223 in words is "thirteen billion, two hundred thirteen million, one hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 73 1237 90301 146323 10681579 181001551 13213113223