Base | Representation |
---|---|
bin | 1000000000111… |
… | …11101100010000 |
3 | 11200112002010012 |
4 | 10000133230100 |
5 | 114203114142 |
6 | 10401054052 |
7 | 1444343054 |
oct | 400375420 |
9 | 150462105 |
10 | 67238672 |
11 | 34a55456 |
12 | 1a627328 |
13 | 10c129c7 |
14 | 8d03c64 |
15 | 5d82882 |
hex | 401fb10 |
67238672 has 20 divisors (see below), whose sum is σ = 137938716. Its totient is φ = 31641600.
The previous prime is 67238671. The next prime is 67238681. The reversal of 67238672 is 27683276.
It can be written as a sum of positive squares in 2 ways, for example, as 45373696 + 21864976 = 6736^2 + 4676^2 .
It is not an unprimeable number, because it can be changed into a prime (67238671) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123329 + ... + 123872.
Almost surely, 267238672 is an apocalyptic number.
It is an amenable number.
67238672 is an abundant number, since it is smaller than the sum of its proper divisors (70700044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67238672 is a wasteful number, since it uses less digits than its factorization.
67238672 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 247226 (or 247220 counting only the distinct ones).
The product of its digits is 169344, while the sum is 41.
The square root of 67238672 is about 8199.9190239904. The cubic root of 67238672 is about 406.6365160244.
The spelling of 67238672 in words is "sixty-seven million, two hundred thirty-eight thousand, six hundred seventy-two".
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