Base | Representation |
---|---|
bin | 100100101010010… |
… | …0100110010001000 |
3 | 10011201201002112221 |
4 | 1021110210302020 |
5 | 10004403132222 |
6 | 322021543424 |
7 | 42324635515 |
oct | 11124446210 |
9 | 3151632487 |
10 | 1230130312 |
11 | 581416124 |
12 | 2a3b74b74 |
13 | 167b13878 |
14 | b953430c |
15 | 72edd0c7 |
hex | 49524c88 |
1230130312 has 16 divisors (see below), whose sum is σ = 2307056400. Its totient is φ = 614915280.
The previous prime is 1230130303. The next prime is 1230130351. The reversal of 1230130312 is 2130310321.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21139 + ... + 53917.
It is an arithmetic number, because the mean of its divisors is an integer number (144191025).
Almost surely, 21230130312 is an apocalyptic number.
It is an amenable number.
1230130312 is a deficient number, since it is larger than the sum of its proper divisors (1076926088).
1230130312 is a wasteful number, since it uses less digits than its factorization.
1230130312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37476 (or 37472 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 1230130312 is about 35073.2135967037. The cubic root of 1230130312 is about 1071.4791062014.
Adding to 1230130312 its reverse (2130310321), we get a palindrome (3360440633).
Subtracting 1230130312 from its reverse (2130310321), we obtain a square (900180009 = 300032).
The spelling of 1230130312 in words is "one billion, two hundred thirty million, one hundred thirty thousand, three hundred twelve".
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