Base | Representation |
---|---|
bin | 100100101011000… |
… | …0010000010111000 |
3 | 10011202102111120002 |
4 | 1021112002002320 |
5 | 10010002343222 |
6 | 322034052132 |
7 | 42331116311 |
oct | 11126020270 |
9 | 3152374502 |
10 | 1230512312 |
11 | 581657127 |
12 | 2a411a048 |
13 | 167c186c3 |
14 | b95d3608 |
15 | 73066392 |
hex | 495820b8 |
1230512312 has 16 divisors (see below), whose sum is σ = 2310711000. Its totient is φ = 614322720.
The previous prime is 1230512299. The next prime is 1230512317. The reversal of 1230512312 is 2132150321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230512317) by changing a digit.
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, 111062 + ... + 121637.
Almost surely, 21230512312 is an apocalyptic number.
It is an amenable number.
1230512312 is a deficient number, since it is larger than the sum of its proper divisors (1080198688).
1230512312 is a wasteful number, since it uses less digits than its factorization.
1230512312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 233366 (or 233362 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 1230512312 is about 35078.6589253352. The cubic root of 1230512312 is about 1071.5900057416.
Adding to 1230512312 its reverse (2132150321), we get a palindrome (3362662633).
The spelling of 1230512312 in words is "one billion, two hundred thirty million, five hundred twelve thousand, three hundred twelve".
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