Base | Representation |
---|---|
bin | 11100001000100001… |
… | …010100010110010100 |
3 | 2212222020011022121212 |
4 | 130020201110112110 |
5 | 443331134113100 |
6 | 21513252200552 |
7 | 2116401256655 |
oct | 341041242624 |
9 | 85866138555 |
10 | 30207722900 |
11 | 118a1521353 |
12 | 5a30609158 |
13 | 2b05424664 |
14 | 1667c7b52c |
15 | bbbeab635 |
hex | 708854594 |
30207722900 has 18 divisors (see below), whose sum is σ = 65550758910. Its totient is φ = 12083089120.
The previous prime is 30207722899. The next prime is 30207722903. The reversal of 30207722900 is 922770203.
It can be written as a sum of positive squares in 3 ways, for example, as 9193741456 + 21013981444 = 95884^2 + 144962^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30207722903) by changing a digit.
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 5 ways as a sum of consecutive naturals, for example, 151038515 + ... + 151038714.
Almost surely, 230207722900 is an apocalyptic number.
It is an amenable number.
30207722900 is an abundant number, since it is smaller than the sum of its proper divisors (35343036010).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30207722900 is a wasteful number, since it uses less digits than its factorization.
30207722900 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 302077243 (or 302077236 counting only the distinct ones).
The product of its (nonzero) digits is 10584, while the sum is 32.
The spelling of 30207722900 in words is "thirty billion, two hundred seven million, seven hundred twenty-two thousand, nine hundred".
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