Base | Representation |
---|---|
bin | 11000100111001000… |
… | …00011101110000101 |
3 | 1021002211211010002011 |
4 | 30103210003232011 |
5 | 204030024341123 |
6 | 10023043014221 |
7 | 645301451602 |
oct | 142344035605 |
9 | 37084733064 |
10 | 13213121413 |
11 | 567050a758 |
12 | 268906a371 |
13 | 13275a154b |
14 | 8d4ba56a9 |
15 | 524eede0d |
hex | 313903b85 |
13213121413 has 16 divisors (see below), whose sum is σ = 13744837120. Its totient is φ = 12688228800.
The previous prime is 13213121401. The next prime is 13213121419. The reversal of 13213121413 is 31412131231.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13213121413 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13213121419) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967878 + ... + 4970536.
It is an arithmetic number, because the mean of its divisors is an integer number (859052320).
Almost surely, 213213121413 is an apocalyptic number.
It is an amenable number.
13213121413 is a deficient number, since it is larger than the sum of its proper divisors (531715707).
13213121413 is a wasteful number, since it uses less digits than its factorization.
13213121413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3868.
The product of its digits is 432, while the sum is 22.
Adding to 13213121413 its reverse (31412131231), we get a palindrome (44625252644).
The spelling of 13213121413 in words is "thirteen billion, two hundred thirteen million, one hundred twenty-one thousand, four hundred thirteen".
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