Base | Representation |
---|---|
bin | 111001011000… |
… | …100101001101 |
3 | 1001022020222012 |
4 | 321120211031 |
5 | 12322333033 |
6 | 1254231005 |
7 | 241601555 |
oct | 71304515 |
9 | 31266865 |
10 | 15042893 |
11 | 8544a48 |
12 | 5055465 |
13 | 3169028 |
14 | 1dd8165 |
15 | 14c2248 |
hex | e5894d |
15042893 has 2 divisors, whose sum is σ = 15042894. Its totient is φ = 15042892.
The previous prime is 15042887. The next prime is 15042917. The reversal of 15042893 is 39824051.
15042893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12264004 + 2778889 = 3502^2 + 1667^2 .
It is a cyclic number.
It is not a de Polignac number, because 15042893 - 24 = 15042877 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (15042803) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7521446 + 7521447.
It is an arithmetic number, because the mean of its divisors is an integer number (7521447).
Almost surely, 215042893 is an apocalyptic number.
It is an amenable number.
15042893 is a deficient number, since it is larger than the sum of its proper divisors (1).
15042893 is an equidigital number, since it uses as much as digits as its factorization.
15042893 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8640, while the sum is 32.
The square root of 15042893 is about 3878.5168557066. The cubic root of 15042893 is about 246.8560575756.
The spelling of 15042893 in words is "fifteen million, forty-two thousand, eight hundred ninety-three".
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