Base | Representation |
---|---|
bin | 111110111110100… |
… | …1110000100010101 |
3 | 12110021100200222200 |
4 | 1331331032010111 |
5 | 13311434403110 |
6 | 545405115113 |
7 | 103236623061 |
oct | 17575160425 |
9 | 5407320880 |
10 | 2113200405 |
11 | 994934818 |
12 | 4ab858a99 |
13 | 278a60354 |
14 | 160924aa1 |
15 | c57c36c0 |
hex | 7df4e115 |
2113200405 has 48 divisors (see below), whose sum is σ = 3798552576. Its totient is φ = 1085633280.
The previous prime is 2113200389. The next prime is 2113200409. The reversal of 2113200405 is 5040023112.
It is not a de Polignac number, because 2113200405 - 24 = 2113200389 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2113200409) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307689 + ... + 314481.
It is an arithmetic number, because the mean of its divisors is an integer number (79136512).
Almost surely, 22113200405 is an apocalyptic number.
It is an amenable number.
2113200405 is a deficient number, since it is larger than the sum of its proper divisors (1685352171).
2113200405 is a wasteful number, since it uses less digits than its factorization.
2113200405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7058 (or 7055 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 2113200405 is about 45969.5595475963. The cubic root of 2113200405 is about 1283.2567629958.
Adding to 2113200405 its reverse (5040023112), we get a palindrome (7153223517).
The spelling of 2113200405 in words is "two billion, one hundred thirteen million, two hundred thousand, four hundred five".
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