Base | Representation |
---|---|
bin | 1000000101001… |
… | …00100000011000 |
3 | 11201112201100122 |
4 | 10002210200120 |
5 | 114323021210 |
6 | 10420452412 |
7 | 1452100100 |
oct | 402444030 |
9 | 151481318 |
10 | 67782680 |
11 | 35297149 |
12 | 1a84a108 |
13 | 110734c4 |
14 | 9006200 |
15 | 5e3db55 |
hex | 40a4818 |
67782680 has 48 divisors (see below), whose sum is σ = 177415920. Its totient is φ = 23239104.
The previous prime is 67782677. The next prime is 67782703. The reversal of 67782680 is 8628776.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15332 + ... + 19251.
It is an arithmetic number, because the mean of its divisors is an integer number (3696165).
Almost surely, 267782680 is an apocalyptic number.
It is an amenable number.
67782680 is an abundant number, since it is smaller than the sum of its proper divisors (109633240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67782680 is a wasteful number, since it uses less digits than its factorization.
67782680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34608 (or 34597 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 44.
The square root of 67782680 is about 8233.0237458664. The cubic root of 67782680 is about 407.7302298433.
The spelling of 67782680 in words is "sixty-seven million, seven hundred eighty-two thousand, six hundred eighty".
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