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13220103212 = 2229523217909
BaseRepresentation
bin11000100111111101…
…01100010000101100
31021010022221211022022
430103332230100230
5204033321300322
610023452405312
7645415010651
oct142376542054
937108854268
1013220103212
115674449238
12268b476838
131328b773a4
148d5aa1c28
1552592c942
hex313fac42c

13220103212 has 24 divisors (see below), whose sum is σ = 23978816400. Its totient is φ = 6369886656.

The previous prime is 13220103199. The next prime is 13220103217. The reversal of 13220103212 is 21230102231.

13220103212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×132201032122 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13220103217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48287 + ... + 169622.

It is an arithmetic number, because the mean of its divisors is an integer number (999117350).

Almost surely, 213220103212 is an apocalyptic number.

It is an amenable number.

13220103212 is a deficient number, since it is larger than the sum of its proper divisors (10758713188).

13220103212 is a wasteful number, since it uses less digits than its factorization.

13220103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218465 (or 218463 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13220103212 its reverse (21230102231), we get a palindrome (34450205443).

The spelling of 13220103212 in words is "thirteen billion, two hundred twenty million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 4 29 58 116 523 1046 2092 15167 30334 60668 217909 435818 871636 6319361 12638722 25277444 113966407 227932814 455865628 3305025803 6610051606 13220103212