Base | Representation |
---|---|
bin | 10111000110010011… |
… | …01000001101110101 |
3 | 1012000020110022102222 |
4 | 23203021220031311 |
5 | 200344111333040 |
6 | 5410310012125 |
7 | 616206540320 |
oct | 134311501565 |
9 | 35006408388 |
10 | 12400886645 |
11 | 5293a82754 |
12 | 24a1047045 |
13 | 1228226864 |
14 | 858d737b7 |
15 | 4c8a5bbb5 |
hex | 2e3268375 |
12400886645 has 32 divisors (see below), whose sum is σ = 17271014400. Its totient is φ = 8372238336.
The previous prime is 12400886581. The next prime is 12400886669. The reversal of 12400886645 is 54668800421.
It is a happy number.
12400886645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12400886645 - 26 = 12400886581 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12400886596 and 12400886605.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 736157 + ... + 752813.
It is an arithmetic number, because the mean of its divisors is an integer number (539719200).
Almost surely, 212400886645 is an apocalyptic number.
It is an amenable number.
12400886645 is a deficient number, since it is larger than the sum of its proper divisors (4870127755).
12400886645 is a wasteful number, since it uses less digits than its factorization.
12400886645 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16997.
The product of its (nonzero) digits is 368640, while the sum is 44.
The spelling of 12400886645 in words is "twelve billion, four hundred million, eight hundred eighty-six thousand, six hundred forty-five".
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