Base | Representation |
---|---|
bin | 10111100100011110… |
… | …01111111111101010 |
3 | 1012122212202202010021 |
4 | 23302033033333222 |
5 | 201403412043123 |
6 | 5451351311054 |
7 | 625402245220 |
oct | 136217177752 |
9 | 35585682107 |
10 | 12654018538 |
11 | 5403955467 |
12 | 255197b48a |
13 | 12687c4945 |
14 | 880826b10 |
15 | 4e0dadc5d |
hex | 2f23cffea |
12654018538 has 8 divisors (see below), whose sum is σ = 21692603232. Its totient is φ = 5423150796.
The previous prime is 12654018529. The next prime is 12654018589. The reversal of 12654018538 is 83581045621.
12654018538 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12654018494 and 12654018503.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451929220 + ... + 451929247.
It is an arithmetic number, because the mean of its divisors is an integer number (2711575404).
Almost surely, 212654018538 is an apocalyptic number.
12654018538 is a deficient number, since it is larger than the sum of its proper divisors (9038584694).
12654018538 is an equidigital number, since it uses as much as digits as its factorization.
12654018538 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 903858476.
The product of its (nonzero) digits is 230400, while the sum is 43.
The spelling of 12654018538 in words is "twelve billion, six hundred fifty-four million, eighteen thousand, five hundred thirty-eight".
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