Base | Representation |
---|---|
bin | 1000000000111… |
… | …11110001001100 |
3 | 11200112002112220 |
4 | 10000133301030 |
5 | 114203121423 |
6 | 10401055340 |
7 | 1444344015 |
oct | 400376114 |
9 | 150462486 |
10 | 67238988 |
11 | 34a55713 |
12 | 1a627550 |
13 | 10c12bab |
14 | 8d0400c |
15 | 5d829e3 |
hex | 401fc4c |
67238988 has 24 divisors (see below), whose sum is σ = 159102720. Its totient is φ = 22097040.
The previous prime is 67238987. The next prime is 67238993. The reversal of 67238988 is 88983276.
It is a self number, because there is not a number n which added to its sum of digits gives 67238988.
It is not an unprimeable number, because it can be changed into a prime (67238981) 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 7 ways as a sum of consecutive naturals, for example, 38608 + ... + 40311.
It is an arithmetic number, because the mean of its divisors is an integer number (6629280).
Almost surely, 267238988 is an apocalyptic number.
It is an amenable number.
67238988 is an abundant number, since it is smaller than the sum of its proper divisors (91863732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67238988 is a wasteful number, since it uses less digits than its factorization.
67238988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78997 (or 78995 counting only the distinct ones).
The product of its digits is 1161216, while the sum is 51.
The square root of 67238988 is about 8199.9382924507. The cubic root of 67238988 is about 406.6371530434.
The spelling of 67238988 in words is "sixty-seven million, two hundred thirty-eight thousand, nine hundred eighty-eight".
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