Base | Representation |
---|---|
bin | 111111111010010100… |
… | …011010011010000000 |
3 | 20120010112110202100111 |
4 | 333322110122122000 |
5 | 2111020241230410 |
6 | 51305302001104 |
7 | 4646366526244 |
oct | 777224323200 |
9 | 216115422314 |
10 | 68624164480 |
11 | 27115608523 |
12 | 11372116194 |
13 | 66183a99b1 |
14 | 346ddd4424 |
15 | 1bb9940b8a |
hex | ffa51a680 |
68624164480 has 32 divisors (see below), whose sum is σ = 164054644740. Its totient is φ = 27449665536.
The previous prime is 68624164457. The next prime is 68624164501. The reversal of 68624164480 is 8446142686.
68624164480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 56784983616 + 11839180864 = 238296^2 + 108808^2 .
It is a tau number, because it is divible by the number of its divisors (32).
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, 53611989 + ... + 53613268.
Almost surely, 268624164480 is an apocalyptic number.
It is an amenable number.
68624164480 is an abundant number, since it is smaller than the sum of its proper divisors (95430480260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68624164480 is a wasteful number, since it uses less digits than its factorization.
68624164480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107225276 (or 107225264 counting only the distinct ones).
The product of its (nonzero) digits is 1769472, while the sum is 49.
The spelling of 68624164480 in words is "sixty-eight billion, six hundred twenty-four million, one hundred sixty-four thousand, four hundred eighty".
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