Base | Representation |
---|---|
bin | 111000101000100… |
… | …0100101000000111 |
3 | 11220102202021122101 |
4 | 1301101010220013 |
5 | 12342434111212 |
6 | 512322012531 |
7 | 65043201406 |
oct | 16121045007 |
9 | 4812667571 |
10 | 1900300807 |
11 | 895741139 |
12 | 4504a7147 |
13 | 24390a762 |
14 | 14054563d |
15 | b1c6c157 |
hex | 71444a07 |
1900300807 has 2 divisors, whose sum is σ = 1900300808. Its totient is φ = 1900300806.
The previous prime is 1900300739. The next prime is 1900300813. The reversal of 1900300807 is 7080030091.
It is a strong prime.
It is an emirp because it is prime and its reverse (7080030091) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1900300807 - 27 = 1900300679 is a prime.
It is a super-2 number, since 2×19003008072 = 7222286314169702498, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1900300007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950150403 + 950150404.
It is an arithmetic number, because the mean of its divisors is an integer number (950150404).
Almost surely, 21900300807 is an apocalyptic number.
1900300807 is a deficient number, since it is larger than the sum of its proper divisors (1).
1900300807 is an equidigital number, since it uses as much as digits as its factorization.
1900300807 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1512, while the sum is 28.
The square root of 1900300807 is about 43592.4397917804. The cubic root of 1900300807 is about 1238.6276890265.
Adding to 1900300807 its reverse (7080030091), we get a palindrome (8980330898).
The spelling of 1900300807 in words is "one billion, nine hundred million, three hundred thousand, eight hundred seven".
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