Base | Representation |
---|---|
bin | 10111100011110101… |
… | …01000000011100111 |
3 | 1012122111121001211202 |
4 | 23301322220003213 |
5 | 201401021041241 |
6 | 5451035353115 |
7 | 625305300014 |
oct | 136172500347 |
9 | 35574531752 |
10 | 12648612071 |
11 | 54008a2507 |
12 | 254bbb279b |
13 | 1267650b54 |
14 | 87dc1a70b |
15 | 4e0691d9b |
hex | 2f1ea80e7 |
12648612071 has 2 divisors, whose sum is σ = 12648612072. Its totient is φ = 12648612070.
The previous prime is 12648612059. The next prime is 12648612089. The reversal of 12648612071 is 17021684621.
It is a weak prime.
It is an emirp because it is prime and its reverse (17021684621) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12648612071 - 218 = 12648349927 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12648612001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324306035 + 6324306036.
It is an arithmetic number, because the mean of its divisors is an integer number (6324306036).
Almost surely, 212648612071 is an apocalyptic number.
12648612071 is a deficient number, since it is larger than the sum of its proper divisors (1).
12648612071 is an equidigital number, since it uses as much as digits as its factorization.
12648612071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 32256, while the sum is 38.
The spelling of 12648612071 in words is "twelve billion, six hundred forty-eight million, six hundred twelve thousand, seventy-one".
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