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13030231222 = 2291511487809
BaseRepresentation
bin11000010001010100…
…11000110010110110
31020122002200022220101
430020222120302312
5203141214344342
65552551024314
7640621065211
oct141052306266
936562608811
1013030231222
115587253638
12263796b09a
1312c8727cb8
148b8798778
15513e243b7
hex308a98cb6

13030231222 has 16 divisors (see below), whose sum is σ = 20353240800. Its totient is φ = 6248793600.

The previous prime is 13030231211. The next prime is 13030231223. The reversal of 13030231222 is 22213203031.

It is a super-2 number, since 2×130302312222 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13030231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030231223) 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, 735147 + ... + 752662.

It is an arithmetic number, because the mean of its divisors is an integer number (1272077550).

Almost surely, 213030231222 is an apocalyptic number.

13030231222 is a deficient number, since it is larger than the sum of its proper divisors (7323009578).

13030231222 is a wasteful number, since it uses less digits than its factorization.

13030231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487991.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13030231222 its reverse (22213203031), we get a palindrome (35243434253).

The spelling of 13030231222 in words is "thirteen billion, thirty million, two hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 29 58 151 302 4379 8758 1487809 2975618 43146461 86292922 224659159 449318318 6515115611 13030231222