Base | Representation |
---|---|
bin | 111111010101101… |
… | …1111101100000101 |
3 | 12111010012000022120 |
4 | 1332223133230011 |
5 | 13323041044310 |
6 | 550521120153 |
7 | 103445005614 |
oct | 17653375405 |
9 | 5433160276 |
10 | 2125331205 |
11 | 9a076a878 |
12 | 4b3929059 |
13 | 27b419a3a |
14 | 1623a187b |
15 | c68bcb70 |
hex | 7eadfb05 |
2125331205 has 16 divisors (see below), whose sum is σ = 3414083904. Its totient is φ = 1128992000.
The previous prime is 2125331179. The next prime is 2125331209. The reversal of 2125331205 is 5021335212.
It is a happy number.
It is not a de Polignac number, because 2125331205 - 228 = 1856895749 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2125331209) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278484 + ... + 286013.
It is an arithmetic number, because the mean of its divisors is an integer number (213380244).
Almost surely, 22125331205 is an apocalyptic number.
It is an amenable number.
2125331205 is a deficient number, since it is larger than the sum of its proper divisors (1288752699).
2125331205 is a wasteful number, since it uses less digits than its factorization.
2125331205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 564756.
The product of its (nonzero) digits is 1800, while the sum is 24.
The square root of 2125331205 is about 46101.3145691096. The cubic root of 2125331205 is about 1285.7075856882.
Adding to 2125331205 its reverse (5021335212), we get a palindrome (7146666417).
The spelling of 2125331205 in words is "two billion, one hundred twenty-five million, three hundred thirty-one thousand, two hundred five".
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