Base | Representation |
---|---|
bin | 11001011111110100… |
… | …01011101000111101 |
3 | 1022022222200011000211 |
4 | 30233322023220331 |
5 | 211013300324234 |
6 | 10142151552421 |
7 | 663134612665 |
oct | 145772135075 |
9 | 38288604024 |
10 | 13688683069 |
11 | 58949a5216 |
12 | 27a038b711 |
13 | 13a1c7ac89 |
14 | 93bdd91a5 |
15 | 551b3b164 |
hex | 32fe8ba3d |
13688683069 has 2 divisors, whose sum is σ = 13688683070. Its totient is φ = 13688683068.
The previous prime is 13688683061. The next prime is 13688683087. The reversal of 13688683069 is 96038688631.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8867047225 + 4821635844 = 94165^2 + 69438^2 .
It is an emirp because it is prime and its reverse (96038688631) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13688683069 - 23 = 13688683061 is a prime.
It is a super-2 number, since 2×136886830692 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13688683061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6844341534 + 6844341535.
It is an arithmetic number, because the mean of its divisors is an integer number (6844341535).
Almost surely, 213688683069 is an apocalyptic number.
It is an amenable number.
13688683069 is a deficient number, since it is larger than the sum of its proper divisors (1).
13688683069 is an equidigital number, since it uses as much as digits as its factorization.
13688683069 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 8957952, while the sum is 58.
The spelling of 13688683069 in words is "thirteen billion, six hundred eighty-eight million, six hundred eighty-three thousand, sixty-nine".
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