Base | Representation |
---|---|
bin | 1000000110001… |
… | …01100011110100 |
3 | 11201210121002000 |
4 | 10003011203310 |
5 | 114341334233 |
6 | 10423415300 |
7 | 1453202601 |
oct | 403054364 |
9 | 151717060 |
10 | 67918068 |
11 | 35379939 |
12 | 1a8b4530 |
13 | 110c000a |
14 | 903d6a8 |
15 | 5e68d13 |
hex | 40c58f4 |
67918068 has 48 divisors (see below), whose sum is σ = 176554560. Its totient is φ = 22578912.
The previous prime is 67918061. The next prime is 67918073. The reversal of 67918068 is 86081976.
It is a happy number.
It is a super-2 number, since 2×679180682 = 9225727921705248, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67918061) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60246 + ... + 61362.
It is an arithmetic number, because the mean of its divisors is an integer number (3678220).
Almost surely, 267918068 is an apocalyptic number.
It is an amenable number.
67918068 is an abundant number, since it is smaller than the sum of its proper divisors (108636492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67918068 is a wasteful number, since it uses less digits than its factorization.
67918068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1693 (or 1685 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 45.
The square root of 67918068 is about 8241.2418967046. The cubic root of 67918068 is about 408.0015138352.
The spelling of 67918068 in words is "sixty-seven million, nine hundred eighteen thousand, sixty-eight".
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