Base | Representation |
---|---|
bin | 10110111011100111… |
… | …00100111110100010 |
3 | 1011202222201210002221 |
4 | 23131303210332202 |
5 | 200203133021010 |
6 | 5353344101254 |
7 | 614040434026 |
oct | 133563447642 |
9 | 34688653087 |
10 | 12311220130 |
11 | 52483a99a0 |
12 | 247700482a |
13 | 1212790651 |
14 | 84b0b2386 |
15 | 4c0c48dda |
hex | 2ddce4fa2 |
12311220130 has 16 divisors (see below), whose sum is σ = 24174759744. Its totient is φ = 4476807280.
The previous prime is 12311220113. The next prime is 12311220133. The reversal of 12311220130 is 3102211321.
It is a super-2 number, since 2×123112201302 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12311220133) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55959982 + ... + 55960201.
It is an arithmetic number, because the mean of its divisors is an integer number (1510922484).
Almost surely, 212311220130 is an apocalyptic number.
12311220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12311220130 is a deficient number, since it is larger than the sum of its proper divisors (11863539614).
12311220130 is a wasteful number, since it uses less digits than its factorization.
12311220130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 111920201.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 12311220130 its reverse (3102211321), we get a palindrome (15413431451).
The spelling of 12311220130 in words is "twelve billion, three hundred eleven million, two hundred twenty thousand, one hundred thirty".
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