Base | Representation |
---|---|
bin | 1000000111101… |
… | …11110110001010 |
3 | 11202012001121200 |
4 | 10003313312022 |
5 | 114414432132 |
6 | 10432045030 |
7 | 1455021240 |
oct | 403676612 |
9 | 152161550 |
10 | 68124042 |
11 | 354aa668 |
12 | 1a993776 |
13 | 111629ac |
14 | 9094790 |
15 | 5ea9d7c |
hex | 40f7d8a |
68124042 has 48 divisors (see below), whose sum is σ = 172815552. Its totient is φ = 18987840.
The previous prime is 68124041. The next prime is 68124073. The reversal of 68124042 is 24042186.
It is a junction number, because it is equal to n+sod(n) for n = 68123997 and 68124015.
It is not an unprimeable number, because it can be changed into a prime (68124041) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1428 + ... + 11759.
It is an arithmetic number, because the mean of its divisors is an integer number (3600324).
Almost surely, 268124042 is an apocalyptic number.
68124042 is an abundant number, since it is smaller than the sum of its proper divisors (104691510).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68124042 is a wasteful number, since it uses less digits than its factorization.
68124042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13243 (or 13240 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 27.
The square root of 68124042 is about 8253.7289754389. The cubic root of 68124042 is about 408.4135440744.
The spelling of 68124042 in words is "sixty-eight million, one hundred twenty-four thousand, forty-two".
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