Base | Representation |
---|---|
bin | 100110100101… |
… | …100010101011 |
3 | 201000220111122 |
4 | 212211202223 |
5 | 10042141433 |
6 | 1000445455 |
7 | 151656335 |
oct | 46454253 |
9 | 21026448 |
10 | 10115243 |
11 | 5789806 |
12 | 347988b |
13 | 2132168 |
14 | 14b4455 |
15 | d4c198 |
hex | 9a58ab |
10115243 has 4 divisors (see below), whose sum is σ = 10153968. Its totient is φ = 10076520.
The previous prime is 10115227. The next prime is 10115249. The reversal of 10115243 is 34251101.
10115243 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34251101 = 2837 ⋅12073.
It is a cyclic number.
It is not a de Polignac number, because 10115243 - 24 = 10115227 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (10115249) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18968 + ... + 19493.
It is an arithmetic number, because the mean of its divisors is an integer number (2538492).
Almost surely, 210115243 is an apocalyptic number.
10115243 is a deficient number, since it is larger than the sum of its proper divisors (38725).
10115243 is an equidigital number, since it uses as much as digits as its factorization.
10115243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38724.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 10115243 is about 3180.4469811648. The cubic root of 10115243 is about 216.2679217107.
Adding to 10115243 its reverse (34251101), we get a palindrome (44366344).
The spelling of 10115243 in words is "ten million, one hundred fifteen thousand, two hundred forty-three".
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