Base | Representation |
---|---|
bin | 100100101010010… |
… | …0111111100001100 |
3 | 10011201201202021220 |
4 | 1021110213330030 |
5 | 10004404040434 |
6 | 322022123340 |
7 | 42325021311 |
oct | 11124477414 |
9 | 3151652256 |
10 | 1230143244 |
11 | 581424910 |
12 | 2a3b80550 |
13 | 167b19715 |
14 | b9538d08 |
15 | 72ee1d49 |
hex | 49527f0c |
1230143244 has 48 divisors (see below), whose sum is σ = 3152061696. Its totient is φ = 370296000.
The previous prime is 1230143237. The next prime is 1230143279. The reversal of 1230143244 is 4423410321.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10927 + ... + 50790.
It is an arithmetic number, because the mean of its divisors is an integer number (65667952).
Almost surely, 21230143244 is an apocalyptic number.
It is an amenable number.
1230143244 is an abundant number, since it is smaller than the sum of its proper divisors (1921918452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1230143244 is a wasteful number, since it uses less digits than its factorization.
1230143244 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 61886 (or 61884 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 24.
The square root of 1230143244 is about 35073.3979534347. The cubic root of 1230143244 is about 1071.4828609037.
Adding to 1230143244 its reverse (4423410321), we get a palindrome (5653553565).
The spelling of 1230143244 in words is "one billion, two hundred thirty million, one hundred forty-three thousand, two hundred forty-four".
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