Base | Representation |
---|---|
bin | 1000000000100… |
… | …01011000110000 |
3 | 11200102002202010 |
4 | 10000101120300 |
5 | 114144230310 |
6 | 10355522520 |
7 | 1444010202 |
oct | 400213060 |
9 | 150362663 |
10 | 67180080 |
11 | 34a15430 |
12 | 1a5b9440 |
13 | 10bc2136 |
14 | 8cca772 |
15 | 5d70320 |
hex | 4011630 |
67180080 has 80 divisors (see below), whose sum is σ = 227199744. Its totient is φ = 16285440.
The previous prime is 67180063. The next prime is 67180111. The reversal of 67180080 is 8008176.
It is a tau number, because it is divible by the number of its divisors (80).
It is a Harshad number since it is a multiple of its sum of digits (30).
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 15 ways as a sum of consecutive naturals, for example, 10084 + ... + 15363.
Almost surely, 267180080 is an apocalyptic number.
67180080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
67180080 is an abundant number, since it is smaller than the sum of its proper divisors (160019664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67180080 is a wasteful number, since it uses less digits than its factorization.
67180080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25474 (or 25468 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 30.
The square root of 67180080 is about 8196.3455271237. The cubic root of 67180080 is about 406.5183668999.
The spelling of 67180080 in words is "sixty-seven million, one hundred eighty thousand, eighty".
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