Base | Representation |
---|---|
bin | 101111110110… |
… | …101111110011 |
3 | 212121100112001 |
4 | 233312233303 |
5 | 11202420021 |
6 | 1124514431 |
7 | 211426243 |
oct | 57665763 |
9 | 25540461 |
10 | 12545011 |
11 | 7099286 |
12 | 424ba17 |
13 | 27a30ab |
14 | 1947b23 |
15 | 117c091 |
hex | bf6bf3 |
12545011 has 4 divisors (see below), whose sum is σ = 12565224. Its totient is φ = 12524800.
The previous prime is 12544999. The next prime is 12545041. The reversal of 12545011 is 11054521.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11054521 = 83 ⋅133187.
It is a cyclic number.
It is not a de Polignac number, because 12545011 - 25 = 12544979 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12545011.
It is not an unprimeable number, because it can be changed into a prime (12545041) 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, 9145 + ... + 10426.
It is an arithmetic number, because the mean of its divisors is an integer number (3141306).
Almost surely, 212545011 is an apocalyptic number.
12545011 is a deficient number, since it is larger than the sum of its proper divisors (20213).
12545011 is an equidigital number, since it uses as much as digits as its factorization.
12545011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20212.
The product of its (nonzero) digits is 200, while the sum is 19.
The square root of 12545011 is about 3541.8937025269. The cubic root of 12545011 is about 232.3576713968.
Adding to 12545011 its reverse (11054521), we get a palindrome (23599532).
The spelling of 12545011 in words is "twelve million, five hundred forty-five thousand, eleven".
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