Base | Representation |
---|---|
bin | 1110111011111… |
… | …11010011110101 |
3 | 22201210000001000 |
4 | 13131333103311 |
5 | 224034131010 |
6 | 20233353513 |
7 | 3051022653 |
oct | 735772365 |
9 | 281700030 |
10 | 125302005 |
11 | 64803284 |
12 | 35b68899 |
13 | 1cc622ca |
14 | 128d9dd3 |
15 | b0017c0 |
hex | 777f4f5 |
125302005 has 16 divisors (see below), whose sum is σ = 222759360. Its totient is φ = 66827664.
The previous prime is 125302003. The next prime is 125302033. The reversal of 125302005 is 500203521.
It is a happy number.
It is not a de Polignac number, because 125302005 - 21 = 125302003 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (125302003) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463947 + ... + 464216.
It is an arithmetic number, because the mean of its divisors is an integer number (13922460).
Almost surely, 2125302005 is an apocalyptic number.
125302005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
125302005 is a deficient number, since it is larger than the sum of its proper divisors (97457355).
125302005 is an equidigital number, since it uses as much as digits as its factorization.
125302005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 928177 (or 928171 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 125302005 is about 11193.8378137259. The cubic root of 125302005 is about 500.4023494763.
Adding to 125302005 its reverse (500203521), we get a palindrome (625505526).
It can be divided in two parts, 12530 and 2005, that added together give a triangular number (14535 = T170).
The spelling of 125302005 in words is "one hundred twenty-five million, three hundred two thousand, five".
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