Base | Representation |
---|---|
bin | 1011111111111110… |
… | …0110111111000101 |
3 | 22022111010000002100 |
4 | 2333333212333011 |
5 | 23044101414023 |
6 | 1251343502313 |
7 | 142552044123 |
oct | 27777467705 |
9 | 8274100070 |
10 | 3221123013 |
11 | 1403270439 |
12 | 75a8b7999 |
13 | 3c4456164 |
14 | 227b26913 |
15 | 13cbc1c43 |
hex | bffe6fc5 |
3221123013 has 12 divisors (see below), whose sum is σ = 4708791360. Its totient is φ = 2121542376.
The previous prime is 3221122981. The next prime is 3221123027. The reversal of 3221123013 is 3103211223.
It is not a de Polignac number, because 3221123013 - 25 = 3221122981 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3221123063) 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, 2155293 + ... + 2156786.
It is an arithmetic number, because the mean of its divisors is an integer number (392399280).
Almost surely, 23221123013 is an apocalyptic number.
It is an amenable number.
3221123013 is a deficient number, since it is larger than the sum of its proper divisors (1487668347).
3221123013 is a wasteful number, since it uses less digits than its factorization.
3221123013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4312168 (or 4312165 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
The square root of 3221123013 is about 56754.9382256734. The cubic root of 3221123013 is about 1476.8479014026.
Adding to 3221123013 its reverse (3103211223), we get a palindrome (6324334236).
The spelling of 3221123013 in words is "three billion, two hundred twenty-one million, one hundred twenty-three thousand, thirteen".
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