Base | Representation |
---|---|
bin | 1000000100011… |
… | …00001111010000 |
3 | 11201100200000011 |
4 | 10002030033100 |
5 | 114311331110 |
6 | 10414404304 |
7 | 1451204230 |
oct | 402141720 |
9 | 151320004 |
10 | 67683280 |
11 | 352294a5 |
12 | 1a800694 |
13 | 1103a1a2 |
14 | 8dbbcc0 |
15 | 5e1e48a |
hex | 408c3d0 |
67683280 has 40 divisors (see below), whose sum is σ = 179845632. Its totient is φ = 23205504.
The previous prime is 67683269. The next prime is 67683281. The reversal of 67683280 is 8238676.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67683281) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59872 + ... + 60991.
Almost surely, 267683280 is an apocalyptic number.
It is an amenable number.
67683280 is an abundant number, since it is smaller than the sum of its proper divisors (112162352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67683280 is a wasteful number, since it uses less digits than its factorization.
67683280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 120883 (or 120877 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 40.
The square root of 67683280 is about 8226.9848668877. The cubic root of 67683280 is about 407.5308268297.
The spelling of 67683280 in words is "sixty-seven million, six hundred eighty-three thousand, two hundred eighty".
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