Base | Representation |
---|---|
bin | 10110101110100110… |
… | …10100100111011100 |
3 | 1011111101101222002112 |
4 | 23113103110213130 |
5 | 144442214214322 |
6 | 5334445213152 |
7 | 611244102050 |
oct | 132723244734 |
9 | 34441358075 |
10 | 12202101212 |
11 | 51a184a274 |
12 | 24465611b8 |
13 | 11c5ca6342 |
14 | 83a7c9c60 |
15 | 4b63925e2 |
hex | 2d74d49dc |
12202101212 has 12 divisors (see below), whose sum is σ = 24404202480. Its totient is φ = 5229471936.
The previous prime is 12202101209. The next prime is 12202101217. The reversal of 12202101212 is 21210120221.
12202101212 is an admirable number.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12202101217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217894637 + ... + 217894692.
It is an arithmetic number, because the mean of its divisors is an integer number (2033683540).
Almost surely, 212202101212 is an apocalyptic number.
It is an amenable number.
12202101212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12202101212 is a wasteful number, since it uses less digits than its factorization.
12202101212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 435789340 (or 435789338 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 14.
Adding to 12202101212 its reverse (21210120221), we get a palindrome (33412221433).
The spelling of 12202101212 in words is "twelve billion, two hundred two million, one hundred one thousand, two hundred twelve".
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