Base | Representation |
---|---|
bin | 100011111010010… |
… | …1101100010000101 |
3 | 10002222102100200200 |
4 | 1013310231202011 |
5 | 4431440002300 |
6 | 315323201113 |
7 | 41601222324 |
oct | 10764554205 |
9 | 3088370620 |
10 | 1205000325 |
11 | 569211641 |
12 | 297676199 |
13 | 162855459 |
14 | b60720bb |
15 | 70bc7200 |
hex | 47d2d885 |
1205000325 has 36 divisors (see below), whose sum is σ = 2169550500. Its totient is φ = 639313920.
The previous prime is 1205000323. The next prime is 1205000339. The reversal of 1205000325 is 5230005021.
It is a happy number.
It can be written as a sum of positive squares in 6 ways, for example, as 182088036 + 1022912289 = 13494^2 + 31983^2 .
It is not a de Polignac number, because 1205000325 - 21 = 1205000323 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1205000298 and 1205000307.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1205000323) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29551 + ... + 57299.
Almost surely, 21205000325 is an apocalyptic number.
1205000325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1205000325 is a deficient number, since it is larger than the sum of its proper divisors (964550175).
1205000325 is a wasteful number, since it uses less digits than its factorization.
1205000325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27958 (or 27950 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 1205000325 is about 34713.1145966478. The cubic root of 1205000325 is about 1064.1325343814.
Adding to 1205000325 its reverse (5230005021), we get a palindrome (6435005346).
The spelling of 1205000325 in words is "one billion, two hundred five million, three hundred twenty-five", and thus it is an aban number.
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