Base | Representation |
---|---|
bin | 11001101110111001… |
… | …01011010001101001 |
3 | 1022122210200011001221 |
4 | 30313130223101221 |
5 | 211243140303212 |
6 | 10202510542041 |
7 | 666231655030 |
oct | 146734532151 |
9 | 38583604057 |
10 | 13815166057 |
11 | 594a334810 |
12 | 2816807921 |
13 | 13c2234994 |
14 | 950b21717 |
15 | 55ccc2807 |
hex | 33772b469 |
13815166057 has 16 divisors (see below), whose sum is σ = 18130636800. Its totient is φ = 10198481040.
The previous prime is 13815166051. The next prime is 13815166061. The reversal of 13815166057 is 75066151831.
It is not a de Polignac number, because 13815166057 - 23 = 13815166049 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13815166051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4720057 + ... + 4722982.
It is an arithmetic number, because the mean of its divisors is an integer number (1133164800).
Almost surely, 213815166057 is an apocalyptic number.
It is an amenable number.
13815166057 is a deficient number, since it is larger than the sum of its proper divisors (4315470743).
13815166057 is a wasteful number, since it uses less digits than its factorization.
13815166057 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9443076.
The product of its (nonzero) digits is 151200, while the sum is 43.
The spelling of 13815166057 in words is "thirteen billion, eight hundred fifteen million, one hundred sixty-six thousand, fifty-seven".
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