Base | Representation |
---|---|
bin | 111101110111101011… |
… | …110000110001101000 |
3 | 20100110210102010220022 |
4 | 331313223300301220 |
5 | 2042023203020440 |
6 | 50304010220012 |
7 | 4541154451622 |
oct | 756753606150 |
9 | 210423363808 |
10 | 66432470120 |
11 | 261a0441075 |
12 | 10a60124608 |
13 | 63592c5923 |
14 | 3302cb9c12 |
15 | 1adc314cb5 |
hex | f77af0c68 |
66432470120 has 32 divisors (see below), whose sum is σ = 158265592200. Its totient is φ = 25009870848.
The previous prime is 66432470119. The next prime is 66432470147. The reversal of 66432470120 is 2107423466.
It can be written as a sum of positive squares in 4 ways, for example, as 43488097444 + 22944372676 = 208538^2 + 151474^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48846725 + ... + 48848084.
Almost surely, 266432470120 is an apocalyptic number.
It is an amenable number.
66432470120 is an abundant number, since it is smaller than the sum of its proper divisors (91833122080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66432470120 is a wasteful number, since it uses less digits than its factorization.
66432470120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97694837 (or 97694833 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 35.
Adding to 66432470120 its reverse (2107423466), we get a palindrome (68539893586).
The spelling of 66432470120 in words is "sixty-six billion, four hundred thirty-two million, four hundred seventy thousand, one hundred twenty".
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