Base | Representation |
---|---|
bin | 11011111101111100… |
… | …001010010000101010 |
3 | 2212111212010201211100 |
4 | 123331330022100222 |
5 | 443000213210330 |
6 | 21443511342230 |
7 | 2112114400626 |
oct | 337574122052 |
9 | 85455121740 |
10 | 30030210090 |
11 | 118102a8351 |
12 | 59a1081976 |
13 | 2aa77118aa |
14 | 164c470186 |
15 | bab5e5060 |
hex | 6fdf0a42a |
30030210090 has 24 divisors (see below), whose sum is σ = 78078546468. Its totient is φ = 8008056000.
The previous prime is 30030210059. The next prime is 30030210101. The reversal of 30030210090 is 9001203003.
It can be written as a sum of positive squares in 2 ways, for example, as 28647932049 + 1382278041 = 169257^2 + 37179^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166834411 + ... + 166834590.
Almost surely, 230030210090 is an apocalyptic number.
30030210090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30030210090 is an abundant number, since it is smaller than the sum of its proper divisors (48048336378).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030210090 is a wasteful number, since it uses less digits than its factorization.
30030210090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 333669014 (or 333669011 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 30030210090 its reverse (9001203003), we get a palindrome (39031413093).
The spelling of 30030210090 in words is "thirty billion, thirty million, two hundred ten thousand, ninety".
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