Base | Representation |
---|---|
bin | 10111110101001000… |
… | …01010110110011111 |
3 | 1020000121122022210202 |
4 | 23322210022312133 |
5 | 202200143021343 |
6 | 5513301454115 |
7 | 632016553604 |
oct | 137244126637 |
9 | 36017568722 |
10 | 12793720223 |
11 | 54757a33a9 |
12 | 259071133b |
13 | 128b72926b |
14 | 8951d06ab |
15 | 4ed2a6db8 |
hex | 2fa90ad9f |
12793720223 has 2 divisors, whose sum is σ = 12793720224. Its totient is φ = 12793720222.
The previous prime is 12793720213. The next prime is 12793720271. The reversal of 12793720223 is 32202739721.
It is a weak prime.
It is an emirp because it is prime and its reverse (32202739721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12793720223 - 24 = 12793720207 is a prime.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12793720213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6396860111 + 6396860112.
It is an arithmetic number, because the mean of its divisors is an integer number (6396860112).
Almost surely, 212793720223 is an apocalyptic number.
12793720223 is a deficient number, since it is larger than the sum of its proper divisors (1).
12793720223 is an equidigital number, since it uses as much as digits as its factorization.
12793720223 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 63504, while the sum is 38.
The spelling of 12793720223 in words is "twelve billion, seven hundred ninety-three million, seven hundred twenty thousand, two hundred twenty-three".
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