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13220030223 = 33489630749
BaseRepresentation
bin11000100111111100…
…11010011100001111
31021010022211010012000
430103332122130033
5204033311431343
610023451043343
7645414255111
oct142376323417
937108733160
1013220030223
1156743a9414
12268b440553
131328b500ba
148d5a833b1
15525915ed3
hex313f9a70f

13220030223 has 8 divisors (see below), whose sum is σ = 19585230000. Its totient is φ = 8813353464.

The previous prime is 13220030207. The next prime is 13220030293. The reversal of 13220030223 is 32203002231.

It is a happy number.

It is not a de Polignac number, because 13220030223 - 24 = 13220030207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220030196 and 13220030205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220030293) 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, 244815348 + ... + 244815401.

It is an arithmetic number, because the mean of its divisors is an integer number (2448153750).

Almost surely, 213220030223 is an apocalyptic number.

13220030223 is a deficient number, since it is larger than the sum of its proper divisors (6365199777).

13220030223 is an equidigital number, since it uses as much as digits as its factorization.

13220030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489630758 (or 489630752 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 13220030223 its reverse (32203002231), we get a palindrome (45423032454).

The spelling of 13220030223 in words is "thirteen billion, two hundred twenty million, thirty thousand, two hundred twenty-three".

Divisors: 1 3 9 27 489630749 1468892247 4406676741 13220030223