Base | Representation |
---|---|
bin | 11000100111000000… |
… | …01111010000101011 |
3 | 1021002202221020112202 |
4 | 30103200033100223 |
5 | 204024300320412 |
6 | 10023005330415 |
7 | 645260111414 |
oct | 142340172053 |
9 | 37082836482 |
10 | 13212120107 |
11 | 566a99642a |
12 | 2688866a0b |
13 | 1327310864 |
14 | 8d49c480b |
15 | 524da23c2 |
hex | 31380f42b |
13212120107 has 2 divisors, whose sum is σ = 13212120108. Its totient is φ = 13212120106.
The previous prime is 13212120059. The next prime is 13212120109. The reversal of 13212120107 is 70102121231.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 13212120107 - 210 = 13212119083 is a prime.
Together with 13212120109, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13212120109) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606060053 + 6606060054.
It is an arithmetic number, because the mean of its divisors is an integer number (6606060054).
Almost surely, 213212120107 is an apocalyptic number.
13212120107 is a deficient number, since it is larger than the sum of its proper divisors (1).
13212120107 is an equidigital number, since it uses as much as digits as its factorization.
13212120107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 168, while the sum is 20.
Adding to 13212120107 its reverse (70102121231), we get a palindrome (83314241338).
The spelling of 13212120107 in words is "thirteen billion, two hundred twelve million, one hundred twenty thousand, one hundred seven".
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