Base | Representation |
---|---|
bin | 111100111111… |
… | …110101100111 |
3 | 1010002101022122 |
4 | 330333311213 |
5 | 13043140434 |
6 | 1330420155 |
7 | 252625265 |
oct | 74776547 |
9 | 33071278 |
10 | 15990119 |
11 | 9031682 |
12 | 543165b |
13 | 340b212 |
14 | 21a3435 |
15 | 160cc2e |
hex | f3fd67 |
15990119 has 2 divisors, whose sum is σ = 15990120. Its totient is φ = 15990118.
The previous prime is 15990097. The next prime is 15990127. The reversal of 15990119 is 91109951.
It is a strong prime.
It is an emirp because it is prime and its reverse (91109951) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 15990119 - 28 = 15989863 is a prime.
It is a super-2 number, since 2×159901192 = 511367811268322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (15990619) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7995059 + 7995060.
It is an arithmetic number, because the mean of its divisors is an integer number (7995060).
Almost surely, 215990119 is an apocalyptic number.
15990119 is a deficient number, since it is larger than the sum of its proper divisors (1).
15990119 is an equidigital number, since it uses as much as digits as its factorization.
15990119 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3645, while the sum is 35.
The square root of 15990119 is about 3998.7646842494. The cubic root of 15990119 is about 251.9323272977.
The spelling of 15990119 in words is "fifteen million, nine hundred ninety thousand, one hundred nineteen".
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