Base | Representation |
---|---|
bin | 1000000111111100… |
… | …0011000001001100 |
3 | 12121222112112011001 |
4 | 2001333003001030 |
5 | 13431240211200 |
6 | 1000221510044 |
7 | 105020252245 |
oct | 20177030114 |
9 | 5558475131 |
10 | 2180788300 |
11 | a19aa8589 |
12 | 50a412324 |
13 | 289a65ca2 |
14 | 1698b9ccc |
15 | cb6c476a |
hex | 81fc304c |
2180788300 has 18 divisors (see below), whose sum is σ = 4732310828. Its totient is φ = 872315280.
The previous prime is 2180788229. The next prime is 2180788303. The reversal of 2180788300 is 38870812.
It is a self number, because there is not a number n which added to its sum of digits gives 2180788300.
It is not an unprimeable number, because it can be changed into a prime (2180788303) 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, 10903842 + ... + 10904041.
Almost surely, 22180788300 is an apocalyptic number.
2180788300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2180788300 is an abundant number, since it is smaller than the sum of its proper divisors (2551522528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180788300 is a wasteful number, since it uses less digits than its factorization.
2180788300 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21807897 (or 21807890 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 37.
The square root of 2180788300 is about 46698.9111222093. The cubic root of 2180788300 is about 1296.7945286498.
The spelling of 2180788300 in words is "two billion, one hundred eighty million, seven hundred eighty-eight thousand, three hundred".
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