Base | Representation |
---|---|
bin | 111111001111011… |
… | …0101010101101101 |
3 | 12110212221101020112 |
4 | 1332132311111231 |
5 | 13321213341023 |
6 | 550322025405 |
7 | 103404542642 |
oct | 17636652555 |
9 | 5425841215 |
10 | 2122012013 |
11 | 999903040 |
12 | 4b27a8265 |
13 | 27a827014 |
14 | 161b79dc9 |
15 | c6464478 |
hex | 7e7b556d |
2122012013 has 4 divisors (see below), whose sum is σ = 2314922208. Its totient is φ = 1929101820.
The previous prime is 2122011973. The next prime is 2122012021. The reversal of 2122012013 is 3102102212.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2122012013 - 212 = 2122007917 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2122012213) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96455081 + ... + 96455102.
It is an arithmetic number, because the mean of its divisors is an integer number (578730552).
Almost surely, 22122012013 is an apocalyptic number.
It is an amenable number.
2122012013 is a deficient number, since it is larger than the sum of its proper divisors (192910195).
2122012013 is a wasteful number, since it uses less digits than its factorization.
2122012013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 192910194.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 2122012013 is about 46065.3016162925. The cubic root of 2122012013 is about 1285.0379278928.
Adding to 2122012013 its reverse (3102102212), we get a palindrome (5224114225).
It can be divided in two parts, 21220 and 12013, that added together give a palindrome (33233).
The spelling of 2122012013 in words is "two billion, one hundred twenty-two million, twelve thousand, thirteen".
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