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13031003222 = 26515501611
BaseRepresentation
bin11000010001011010…
…10101010001010110
31020122011010112212222
430020231111101112
5203141414100342
65553015342342
7640630462016
oct141055252126
936564115788
1013031003222
115587730656
1226380819b2
1312c89384c3
148b8919c46
15514027ed2
hex308b55456

13031003222 has 4 divisors (see below), whose sum is σ = 19546504836. Its totient is φ = 6515501610.

The previous prime is 13031003213. The next prime is 13031003261. The reversal of 13031003222 is 22230013031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22230013031 = 37600811163.

It is a self number, because there is not a number n which added to its sum of digits gives 13031003222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257750804 + ... + 3257750807.

It is an arithmetic number, because the mean of its divisors is an integer number (4886626209).

Almost surely, 213031003222 is an apocalyptic number.

13031003222 is a deficient number, since it is larger than the sum of its proper divisors (6515501614).

13031003222 is an equidigital number, since it uses as much as digits as its factorization.

13031003222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6515501613.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13031003222 its reverse (22230013031), we get a palindrome (35261016253).

The spelling of 13031003222 in words is "thirteen billion, thirty-one million, three thousand, two hundred twenty-two".

Divisors: 1 2 6515501611 13031003222