Base | Representation |
---|---|
bin | 1000000100010… |
… | …11011110100000 |
3 | 11201100111201121 |
4 | 10002023132200 |
5 | 114311231120 |
6 | 10414342024 |
7 | 1451162152 |
oct | 402133640 |
9 | 151314647 |
10 | 67680160 |
11 | 35227119 |
12 | 1a7ba914 |
13 | 11038942 |
14 | 8dbaad2 |
15 | 5e1d5aa |
hex | 408b7a0 |
67680160 has 24 divisors (see below), whose sum is σ = 159894756. Its totient is φ = 27072000.
The previous prime is 67680133. The next prime is 67680199. The reversal of 67680160 is 6108676.
It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 374544 = 8204^2 + 612^2 .
It is a super-4 number, since 4×676801604 (a number of 32 digits) contains 4444 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211341 + ... + 211660.
Almost surely, 267680160 is an apocalyptic number.
It is an amenable number.
67680160 is an abundant number, since it is smaller than the sum of its proper divisors (92214596).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67680160 is a wasteful number, since it uses less digits than its factorization.
67680160 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 423016 (or 423008 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 34.
The square root of 67680160 is about 8226.7952448083. The cubic root of 67680160 is about 407.5245647430.
The spelling of 67680160 in words is "sixty-seven million, six hundred eighty thousand, one hundred sixty".
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