Base | Representation |
---|---|
bin | 10110011111000000… |
… | …11101010110101001 |
3 | 1011011021022221210120 |
4 | 23033200131112221 |
5 | 144210224432040 |
6 | 5313454233453 |
7 | 605065405413 |
oct | 131740352651 |
9 | 34137287716 |
10 | 12071327145 |
11 | 5134a49829 |
12 | 240a7b5889 |
13 | 11a4b79437 |
14 | 8272a79b3 |
15 | 4a9b5e7d0 |
hex | 2cf81d5a9 |
12071327145 has 32 divisors (see below), whose sum is σ = 19845141888. Its totient is φ = 6261193728.
The previous prime is 12071327137. The next prime is 12071327161. The reversal of 12071327145 is 54172317021.
It is not a de Polignac number, because 12071327145 - 23 = 12071327137 is a prime.
It is a super-2 number, since 2×120713271452 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1832097 + ... + 1838673.
It is an arithmetic number, because the mean of its divisors is an integer number (620160684).
Almost surely, 212071327145 is an apocalyptic number.
12071327145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12071327145 is a deficient number, since it is larger than the sum of its proper divisors (7773814743).
12071327145 is a wasteful number, since it uses less digits than its factorization.
12071327145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9929.
The product of its (nonzero) digits is 11760, while the sum is 33.
The spelling of 12071327145 in words is "twelve billion, seventy-one million, three hundred twenty-seven thousand, one hundred forty-five".
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