Base | Representation |
---|---|
bin | 10110110011010010… |
… | …11110111100111001 |
3 | 1011121010110212020222 |
4 | 23121221132330321 |
5 | 200032303341040 |
6 | 5342413025425 |
7 | 612232510520 |
oct | 133151367471 |
9 | 34533425228 |
10 | 12241465145 |
11 | 5211a95a48 |
12 | 2457785275 |
13 | 12011a9500 |
14 | 841b154b7 |
15 | 4b9a6abb5 |
hex | 2d9a5ef39 |
12241465145 has 192 divisors, whose sum is σ = 20643102720. Its totient is φ = 6784487424.
The previous prime is 12241465139. The next prime is 12241465147. The reversal of 12241465145 is 54156414221.
It is not a de Polignac number, because 12241465145 - 28 = 12241464889 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is not an unprimeable number, because it can be changed into a prime (12241465147) by changing a digit.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 154955216 + ... + 154955294.
It is an arithmetic number, because the mean of its divisors is an integer number (107516160).
Almost surely, 212241465145 is an apocalyptic number.
It is an amenable number.
12241465145 is a deficient number, since it is larger than the sum of its proper divisors (8401637575).
12241465145 is a wasteful number, since it uses less digits than its factorization.
12241465145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 224 (or 211 counting only the distinct ones).
The product of its digits is 38400, while the sum is 35.
Adding to 12241465145 its reverse (54156414221), we get a palindrome (66397879366).
The spelling of 12241465145 in words is "twelve billion, two hundred forty-one million, four hundred sixty-five thousand, one hundred forty-five".
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