Base | Representation |
---|---|
bin | 10110101111111111… |
… | …11011000010110011 |
3 | 1011112012101222010202 |
4 | 23113333323002303 |
5 | 200003212333242 |
6 | 5335543545415 |
7 | 611445345536 |
oct | 132777730263 |
9 | 34465358122 |
10 | 12213792947 |
11 | 51a8405464 |
12 | 244a45b26b |
13 | 11c853ac25 |
14 | 83c190a1d |
15 | 4b7401932 |
hex | 2d7ffb0b3 |
12213792947 has 2 divisors, whose sum is σ = 12213792948. Its totient is φ = 12213792946.
The previous prime is 12213792931. The next prime is 12213792967. The reversal of 12213792947 is 74929731221.
It is a weak prime.
It is an emirp because it is prime and its reverse (74929731221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12213792947 - 24 = 12213792931 is a prime.
It is not a weakly prime, because it can be changed into another prime (12213792967) by changing a digit.
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 as a sum of consecutive naturals, namely, 6106896473 + 6106896474.
It is an arithmetic number, because the mean of its divisors is an integer number (6106896474).
Almost surely, 212213792947 is an apocalyptic number.
12213792947 is a deficient number, since it is larger than the sum of its proper divisors (1).
12213792947 is an equidigital number, since it uses as much as digits as its factorization.
12213792947 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 381024, while the sum is 47.
The spelling of 12213792947 in words is "twelve billion, two hundred thirteen million, seven hundred ninety-two thousand, nine hundred forty-seven".
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