Base | Representation |
---|---|
bin | 1111010001100… |
… | …0000011110000 |
3 | 11110112200002211 |
4 | 3310120003300 |
5 | 112344433210 |
6 | 10205021504 |
7 | 1405341514 |
oct | 364300360 |
9 | 143480084 |
10 | 64061680 |
11 | 33185541 |
12 | 19554894 |
13 | 1036c927 |
14 | 8718144 |
15 | 595638a |
hex | 3d180f0 |
64061680 has 40 divisors (see below), whose sum is σ = 152583984. Its totient is φ = 24998400.
The previous prime is 64061629. The next prime is 64061707. The reversal of 64061680 is 8616046.
It is a tau number, because it is divible by the number of its divisors (40).
It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
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, 6486 + ... + 13045.
Almost surely, 264061680 is an apocalyptic number.
It is an amenable number.
64061680 is an abundant number, since it is smaller than the sum of its proper divisors (88522304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
64061680 is a wasteful number, since it uses less digits than its factorization.
64061680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19585 (or 19579 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 31.
The square root of 64061680 is about 8003.8540716332. The cubic root of 64061680 is about 400.1284587415.
The spelling of 64061680 in words is "sixty-four million, sixty-one thousand, six hundred eighty".
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