Base | Representation |
---|---|
bin | 100100101010111… |
… | …0011100111101001 |
3 | 10011202022111111200 |
4 | 1021111303213221 |
5 | 10004444000400 |
6 | 322032514413 |
7 | 42330452121 |
oct | 11125634751 |
9 | 3152274450 |
10 | 1230453225 |
11 | 5816167a1 |
12 | 2a40aba09 |
13 | 167bc7841 |
14 | b95b9c81 |
15 | 73053b00 |
hex | 495739e9 |
1230453225 has 36 divisors (see below), whose sum is σ = 2206894092. Its totient is φ = 655344000.
The previous prime is 1230453223. The next prime is 1230453227. The reversal of 1230453225 is 5223540321.
It is a happy number.
1230453225 is a `hidden beast` number, since 123 + 0 + 4 + 532 + 2 + 5 = 666.
It is an interprime number because it is at equal distance from previous prime (1230453223) and next prime (1230453227).
It can be written as a sum of positive squares in 6 ways, for example, as 127449 + 1230325776 = 357^2 + 35076^2 .
It is not a de Polignac number, because 1230453225 - 21 = 1230453223 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1230453223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 181395 + ... + 188055.
Almost surely, 21230453225 is an apocalyptic number.
1230453225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1230453225 is a deficient number, since it is larger than the sum of its proper divisors (976440867).
1230453225 is a wasteful number, since it uses less digits than its factorization.
1230453225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7498 (or 7490 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 27.
The square root of 1230453225 is about 35077.8167079994. The cubic root of 1230453225 is about 1071.5728535220.
Adding to 1230453225 its reverse (5223540321), we get a palindrome (6453993546).
The spelling of 1230453225 in words is "one billion, two hundred thirty million, four hundred fifty-three thousand, two hundred twenty-five".
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