Base | Representation |
---|---|
bin | 10110111011010011… |
… | …01001001010100101 |
3 | 1011202210211110200221 |
4 | 23131221221022211 |
5 | 200202001201340 |
6 | 5353212204341 |
7 | 614006336251 |
oct | 133551511245 |
9 | 34683743627 |
10 | 12308615845 |
11 | 5246990299 |
12 | 24761696b1 |
13 | 121208b156 |
14 | 84a9d5261 |
15 | 4c08d244a |
hex | 2dda692a5 |
12308615845 has 8 divisors (see below), whose sum is σ = 14886641664. Its totient is φ = 9769357584.
The previous prime is 12308615833. The next prime is 12308615857. The reversal of 12308615845 is 54851680321.
It is an interprime number because it is at equal distance from previous prime (12308615833) and next prime (12308615857).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12308615845 - 223 = 12300227237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9691189 + ... + 9692458.
It is an arithmetic number, because the mean of its divisors is an integer number (1860830208).
Almost surely, 212308615845 is an apocalyptic number.
It is an amenable number.
12308615845 is a deficient number, since it is larger than the sum of its proper divisors (2578025819).
12308615845 is a wasteful number, since it uses less digits than its factorization.
12308615845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19383779.
The product of its (nonzero) digits is 230400, while the sum is 43.
The spelling of 12308615845 in words is "twelve billion, three hundred eight million, six hundred fifteen thousand, eight hundred forty-five".
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