Base | Representation |
---|---|
bin | 10111000011111001… |
… | …01101111011100101 |
3 | 1011221211111222211002 |
4 | 23201330231323211 |
5 | 200323431144330 |
6 | 5404305523045 |
7 | 615543266030 |
oct | 134174557345 |
9 | 34854458732 |
10 | 12380724965 |
11 | 5283661a04 |
12 | 2496343485 |
13 | 1223cb797b |
14 | 856406017 |
15 | 4c6dc7e45 |
hex | 2e1f2dee5 |
12380724965 has 16 divisors (see below), whose sum is σ = 16982110080. Its totient is φ = 8488224960.
The previous prime is 12380724931. The next prime is 12380724971. The reversal of 12380724965 is 56942708321.
It is not a de Polignac number, because 12380724965 - 210 = 12380723941 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211175 + ... + 263355.
It is an arithmetic number, because the mean of its divisors is an integer number (1061381880).
It is a 1-persistent number, because it is pandigital, but 2⋅12380724965 = 24761449930 is not.
Almost surely, 212380724965 is an apocalyptic number.
It is an amenable number.
12380724965 is a deficient number, since it is larger than the sum of its proper divisors (4601385115).
12380724965 is an equidigital number, since it uses as much as digits as its factorization.
12380724965 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58972.
The product of its (nonzero) digits is 725760, while the sum is 47.
The spelling of 12380724965 in words is "twelve billion, three hundred eighty million, seven hundred twenty-four thousand, nine hundred sixty-five".
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