Base | Representation |
---|---|
bin | 111100100000100… |
… | …0001011100010111 |
3 | 12020111101111100210 |
4 | 1321001001130113 |
5 | 13124224424231 |
6 | 533244340503 |
7 | 101212234416 |
oct | 17101013427 |
9 | 5214344323 |
10 | 2030311191 |
11 | 95206a937 |
12 | 487b44733 |
13 | 26482ab8c |
14 | 15390947d |
15 | bd39da46 |
hex | 79041717 |
2030311191 has 8 divisors (see below), whose sum is σ = 2733884784. Its totient is φ = 1340139200.
The previous prime is 2030311189. The next prime is 2030311271. The reversal of 2030311191 is 1911130302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2030311191 - 21 = 2030311189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2030311181) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3350046 + ... + 3350651.
It is an arithmetic number, because the mean of its divisors is an integer number (341735598).
Almost surely, 22030311191 is an apocalyptic number.
2030311191 is a deficient number, since it is larger than the sum of its proper divisors (703573593).
2030311191 is a wasteful number, since it uses less digits than its factorization.
2030311191 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6700801.
The product of its (nonzero) digits is 162, while the sum is 21.
The square root of 2030311191 is about 45058.9745888652. The cubic root of 2030311191 is about 1266.2541143154.
Adding to 2030311191 its reverse (1911130302), we get a palindrome (3941441493).
Subtracting from 2030311191 its reverse (1911130302), we obtain a square (119180889 = 109172).
The spelling of 2030311191 in words is "two billion, thirty million, three hundred eleven thousand, one hundred ninety-one".
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