Base | Representation |
---|---|
bin | 11100001001110111… |
… | …001001001000000000 |
3 | 2220000210111100122101 |
4 | 130021313021020000 |
5 | 443402414040222 |
6 | 21515414320144 |
7 | 2120063433004 |
oct | 341167111000 |
9 | 86023440571 |
10 | 30230221312 |
11 | 11903198785 |
12 | 5a38059054 |
13 | 2b09ca1025 |
14 | 166ac56704 |
15 | bbde52927 |
hex | 709dc9200 |
30230221312 has 40 divisors (see below), whose sum is σ = 61080158700. Its totient is φ = 14945255424.
The previous prime is 30230221309. The next prime is 30230221367. The reversal of 30230221312 is 21312203203.
It can be written as a sum of positive squares in 2 ways, for example, as 30186977536 + 43243776 = 173744^2 + 6576^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 30230221312.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286137 + ... + 377272.
Almost surely, 230230221312 is an apocalyptic number.
30230221312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30230221312 is an abundant number, since it is smaller than the sum of its proper divisors (30849937388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30230221312 is an frugal number, since it uses more digits than its factorization.
30230221312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 663516 (or 663500 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 30230221312 its reverse (21312203203), we get a palindrome (51542424515).
The spelling of 30230221312 in words is "thirty billion, two hundred thirty million, two hundred twenty-one thousand, three hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.094 sec. • engine limits •