Base | Representation |
---|---|
bin | 111011111111111… |
… | …0010101001101011 |
3 | 12012022012201122101 |
4 | 1313333302221223 |
5 | 13110340224433 |
6 | 531434034231 |
7 | 100614004351 |
oct | 16777625153 |
9 | 5168181571 |
10 | 2013211243 |
11 | 94345044a |
12 | 482278977 |
13 | 261121774 |
14 | 1515377d1 |
15 | bbb2207d |
hex | 77ff2a6b |
2013211243 has 16 divisors (see below), whose sum is σ = 2088437760. Its totient is φ = 1939687200.
The previous prime is 2013211241. The next prime is 2013211259. The reversal of 2013211243 is 3421123102.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 2013211243 - 21 = 2013211241 is a prime.
It is a super-3 number, since 3×20132112433 (a number of 29 digits) contains 333 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2013211243.
It is not an unprimeable number, because it can be changed into a prime (2013211241) 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, 779328 + ... + 781906.
It is an arithmetic number, because the mean of its divisors is an integer number (130527360).
Almost surely, 22013211243 is an apocalyptic number.
2013211243 is a deficient number, since it is larger than the sum of its proper divisors (75226517).
2013211243 is a wasteful number, since it uses less digits than its factorization.
2013211243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2898.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 2013211243 is about 44868.8226166009. The cubic root of 2013211243 is about 1262.6891509949.
Adding to 2013211243 its reverse (3421123102), we get a palindrome (5434334345).
It can be divided in two parts, 20132 and 11243, that added together give a triangular number (31375 = T250).
The spelling of 2013211243 in words is "two billion, thirteen million, two hundred eleven thousand, two hundred forty-three".
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