Base | Representation |
---|---|
bin | 11011111100001001… |
… | …010011001110010000 |
3 | 2212102202110222212201 |
4 | 123330021103032100 |
5 | 442420011201430 |
6 | 21440514132544 |
7 | 2111300434045 |
oct | 337411231620 |
9 | 85382428781 |
10 | 30000100240 |
11 | 117a5302380 |
12 | 5992b81154 |
13 | 2aa13cb906 |
14 | 16484731cc |
15 | ba8b488ca |
hex | 6fc253390 |
30000100240 has 80 divisors (see below), whose sum is σ = 78147766080. Its totient is φ = 10614274560.
The previous prime is 30000100219. The next prime is 30000100241. The reversal of 30000100240 is 4200100003.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (10).
It is not an unprimeable number, because it can be changed into a prime (30000100241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428130 + ... + 493249.
It is an arithmetic number, because the mean of its divisors is an integer number (976847076).
Almost surely, 230000100240 is an apocalyptic number.
It is an amenable number.
30000100240 is an abundant number, since it is smaller than the sum of its proper divisors (48147665840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30000100240 is a wasteful number, since it uses less digits than its factorization.
30000100240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 921440 (or 921434 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 10.
Adding to 30000100240 its reverse (4200100003), we get a palindrome (34200200243).
The spelling of 30000100240 in words is "thirty billion, one hundred thousand, two hundred forty".
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