Base | Representation |
---|---|
bin | 10110100110001011… |
… | …10010010110111000 |
3 | 1011022110110012211101 |
4 | 23103011302112320 |
5 | 144321122203102 |
6 | 5323442541144 |
7 | 606425400562 |
oct | 132305622670 |
9 | 34273405741 |
10 | 12131444152 |
11 | 516597a603 |
12 | 24269677b4 |
13 | 11b4467729 |
14 | 831276332 |
15 | 4b0086e87 |
hex | 2d31725b8 |
12131444152 has 16 divisors (see below), whose sum is σ = 22757981400. Its totient is φ = 6062649120.
The previous prime is 12131444141. The next prime is 12131444161. The reversal of 12131444152 is 25144413121.
It is a happy number.
12131444152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 12131444152.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367299 + ... + 398962.
Almost surely, 212131444152 is an apocalyptic number.
It is an amenable number.
12131444152 is a deficient number, since it is larger than the sum of its proper divisors (10626537248).
12131444152 is a wasteful number, since it uses less digits than its factorization.
12131444152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 768246 (or 768242 counting only the distinct ones).
The product of its digits is 3840, while the sum is 28.
Adding to 12131444152 its reverse (25144413121), we get a palindrome (37275857273).
The spelling of 12131444152 in words is "twelve billion, one hundred thirty-one million, four hundred forty-four thousand, one hundred fifty-two".
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