Base | Representation |
---|---|
bin | 1000000110111… |
… | …00100011010011 |
3 | 11201222101020222 |
4 | 10003130203103 |
5 | 114402342433 |
6 | 10425423255 |
7 | 1454044265 |
oct | 403344323 |
9 | 151871228 |
10 | 68012243 |
11 | 35433672 |
12 | 1a93ab2b |
13 | 11123b40 |
14 | 9065b35 |
15 | 5e86b98 |
hex | 40dc8d3 |
68012243 has 16 divisors (see below), whose sum is σ = 75384960. Its totient is φ = 60967296.
The previous prime is 68012237. The next prime is 68012251. The reversal of 68012243 is 34221086.
It is not a de Polignac number, because 68012243 - 212 = 68008147 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68012213) 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, 95573 + ... + 96281.
It is an arithmetic number, because the mean of its divisors is an integer number (4711560).
Almost surely, 268012243 is an apocalyptic number.
68012243 is a deficient number, since it is larger than the sum of its proper divisors (7372717).
68012243 is a wasteful number, since it uses less digits than its factorization.
68012243 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 926.
The product of its (nonzero) digits is 2304, while the sum is 26.
The square root of 68012243 is about 8246.9535587391. The cubic root of 68012243 is about 408.1900046548.
It can be divided in two parts, 680 and 12243, that multiplied together give a triangular number (8325240 = T4080).
The spelling of 68012243 in words is "sixty-eight million, twelve thousand, two hundred forty-three".
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