Base | Representation |
---|---|
bin | 100100101010011… |
… | …1000110011101010 |
3 | 10011201212021001122 |
4 | 1021110320303222 |
5 | 10004413243310 |
6 | 322023415242 |
7 | 42325426604 |
oct | 11124706352 |
9 | 3151767048 |
10 | 1230212330 |
11 | 581471806 |
12 | 2a3bb4522 |
13 | 167b41cb9 |
14 | b9556174 |
15 | 73007555 |
hex | 49538cea |
1230212330 has 16 divisors (see below), whose sum is σ = 2214785160. Its totient is φ = 491995392.
The previous prime is 1230212317. The next prime is 1230212341. The reversal of 1230212330 is 332120321.
It can be written as a sum of positive squares in 4 ways, for example, as 846169921 + 384042409 = 29089^2 + 19597^2 .
It is a junction number, because it is equal to n+sod(n) for n = 1230212299 and 1230212308.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90542 + ... + 103238.
Almost surely, 21230212330 is an apocalyptic number.
1230212330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1230212330 is a deficient number, since it is larger than the sum of its proper divisors (984572830).
1230212330 is a wasteful number, since it uses less digits than its factorization.
1230212330 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22393.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 1230212330 is about 35074.3828170932. The cubic root of 1230212330 is about 1071.5029190228.
Adding to 1230212330 its reverse (332120321), we get a palindrome (1562332651).
The spelling of 1230212330 in words is "one billion, two hundred thirty million, two hundred twelve thousand, three hundred thirty".
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