Base | Representation |
---|---|
bin | 10111011000000111… |
… | …10111011000010111 |
3 | 1012101122201220012121 |
4 | 23230003313120113 |
5 | 201200343331324 |
6 | 5433210000411 |
7 | 623003251306 |
oct | 135403673027 |
9 | 35348656177 |
10 | 12550370839 |
11 | 53603a2406 |
12 | 2523116107 |
13 | 12501a4a46 |
14 | 870b6643d |
15 | 4d6c385e4 |
hex | 2ec0f7617 |
12550370839 has 4 divisors (see below), whose sum is σ = 12551004160. Its totient is φ = 12549737520.
The previous prime is 12550370773. The next prime is 12550370843. The reversal of 12550370839 is 93807305521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93807305521 = 2909 ⋅32247269.
It is a cyclic number.
It is not a de Polignac number, because 12550370839 - 213 = 12550362647 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12550370795 and 12550370804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12550370869) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285942 + ... + 326899.
It is an arithmetic number, because the mean of its divisors is an integer number (3137751040).
Almost surely, 212550370839 is an apocalyptic number.
12550370839 is a deficient number, since it is larger than the sum of its proper divisors (633321).
12550370839 is an equidigital number, since it uses as much as digits as its factorization.
12550370839 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 633320.
The product of its (nonzero) digits is 226800, while the sum is 43.
The spelling of 12550370839 in words is "twelve billion, five hundred fifty million, three hundred seventy thousand, eight hundred thirty-nine".
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