Base | Representation |
---|---|
bin | 10110101110101101… |
… | …11010010101010011 |
3 | 1011111110011202210101 |
4 | 23113112322111103 |
5 | 144442434322011 |
6 | 5334521313231 |
7 | 611255101210 |
oct | 132726722523 |
9 | 34443152711 |
10 | 12203042131 |
11 | 51a2332195 |
12 | 2446935817 |
13 | 11c62456b7 |
14 | 83a992b07 |
15 | 4b64cb2c1 |
hex | 2d75ba553 |
12203042131 has 16 divisors (see below), whose sum is σ = 14265327040. Its totient is φ = 10222692480.
The previous prime is 12203042129. The next prime is 12203042149. The reversal of 12203042131 is 13124030221.
It is a happy number.
It is not a de Polignac number, because 12203042131 - 21 = 12203042129 is a prime.
It is a super-2 number, since 2×122030421312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12203042099 and 12203042108.
It is not an unprimeable number, because it can be changed into a prime (12203042171) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23976 + ... + 158053.
It is an arithmetic number, because the mean of its divisors is an integer number (891582940).
Almost surely, 212203042131 is an apocalyptic number.
12203042131 is a deficient number, since it is larger than the sum of its proper divisors (2062284909).
12203042131 is a wasteful number, since it uses less digits than its factorization.
12203042131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 182254.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 12203042131 its reverse (13124030221), we get a palindrome (25327072352).
The spelling of 12203042131 in words is "twelve billion, two hundred three million, forty-two thousand, one hundred thirty-one".
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