Base | Representation |
---|---|
bin | 10001101001111111000… |
… | …010011110010001101001 |
3 | 11021222202210211111022211 |
4 | 101221333002132101221 |
5 | 124334330401212301 |
6 | 2325215441445121 |
7 | 153442001650051 |
oct | 21517702362151 |
9 | 4258683744284 |
10 | 1213312132201 |
11 | 428621082044 |
12 | 1771939407a1 |
13 | 8a551544700 |
14 | 42a20504561 |
15 | 21863746051 |
hex | 11a7f09e469 |
1213312132201 has 12 divisors (see below), whose sum is σ = 1313855120208. Its totient is φ = 1119953216304.
The previous prime is 1213312132199. The next prime is 1213312132211. The reversal of 1213312132201 is 1022312133121.
It is not a de Polignac number, because 1213312132201 - 21 = 1213312132199 is a prime.
It is a super-2 number, since 2×12133121322012 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1213312132211) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11188426 + ... + 11296348.
It is an arithmetic number, because the mean of its divisors is an integer number (109487926684).
Almost surely, 21213312132201 is an apocalyptic number.
It is an amenable number.
1213312132201 is a deficient number, since it is larger than the sum of its proper divisors (100542988007).
1213312132201 is a wasteful number, since it uses less digits than its factorization.
1213312132201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174472 (or 174459 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 1213312132201 its reverse (1022312133121), we get a palindrome (2235624265322).
The spelling of 1213312132201 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, one hundred thirty-two thousand, two hundred one".
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