Base | Representation |
---|---|
bin | 100111100110100… |
… | …101001000101110 |
3 | 1201022020021202120 |
4 | 213212211020232 |
5 | 2330043100011 |
6 | 145532533410 |
7 | 22315343100 |
oct | 4746451056 |
9 | 1638207676 |
10 | 664425006 |
11 | 311061383 |
12 | 166621266 |
13 | a78649bb |
14 | 64357570 |
15 | 3d4e6a06 |
hex | 279a522e |
664425006 has 24 divisors (see below), whose sum is σ = 1545805800. Its totient is φ = 189835632.
The previous prime is 664424977. The next prime is 664425007. The reversal of 664425006 is 600524466.
664425006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (664425007) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1129681 + ... + 1130268.
It is an arithmetic number, because the mean of its divisors is an integer number (64408575).
Almost surely, 2664425006 is an apocalyptic number.
664425006 is an abundant number, since it is smaller than the sum of its proper divisors (881380794).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
664425006 is a wasteful number, since it uses less digits than its factorization.
664425006 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2259968 (or 2259961 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 33.
The square root of 664425006 is about 25776.4428500133. The cubic root of 664425006 is about 872.6002297534.
The spelling of 664425006 in words is "six hundred sixty-four million, four hundred twenty-five thousand, six".
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