Base | Representation |
---|---|
bin | 111110111110011… |
… | …1101011011000111 |
3 | 12110021020020110201 |
4 | 1331330331123013 |
5 | 13311430212411 |
6 | 545403431331 |
7 | 103236220240 |
oct | 17574753307 |
9 | 5407206421 |
10 | 2113132231 |
11 | 994898581 |
12 | 4ab825547 |
13 | 278a38302 |
14 | 160907cc7 |
15 | c57ad3c1 |
hex | 7df3d6c7 |
2113132231 has 8 divisors (see below), whose sum is σ = 2416309920. Its totient is φ = 1810279968.
The previous prime is 2113132223. The next prime is 2113132243. The reversal of 2113132231 is 1322313112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2113132231 - 23 = 2113132223 is a prime.
It is a super-2 number, since 2×21131322312 = 8930655651382074722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2113132199 and 2113132208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2113130231) 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, 67276 + ... + 93553.
It is an arithmetic number, because the mean of its divisors is an integer number (302038740).
Almost surely, 22113132231 is an apocalyptic number.
2113132231 is a deficient number, since it is larger than the sum of its proper divisors (303177689).
2113132231 is a wasteful number, since it uses less digits than its factorization.
2113132231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 162713.
The product of its digits is 216, while the sum is 19.
The square root of 2113132231 is about 45968.8180291815. The cubic root of 2113132231 is about 1283.2429631235.
Adding to 2113132231 its reverse (1322313112), we get a palindrome (3435445343).
The spelling of 2113132231 in words is "two billion, one hundred thirteen million, one hundred thirty-two thousand, two hundred thirty-one".
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