Base | Representation |
---|---|
bin | 111110110111101110… |
… | …101101100100000100 |
3 | 20110020200022011111212 |
4 | 332313232231210010 |
5 | 2101223242011340 |
6 | 51002352550552 |
7 | 4606612622663 |
oct | 766756554404 |
9 | 213220264455 |
10 | 67506985220 |
11 | 266a1a2a184 |
12 | 110bbb52458 |
13 | 649aac278c |
14 | 33a58a2dda |
15 | 1b51814a65 |
hex | fb7bad904 |
67506985220 has 48 divisors (see below), whose sum is σ = 142489005120. Its totient is φ = 26865154944.
The previous prime is 67506985219. The next prime is 67506985267. The reversal of 67506985220 is 2258960576.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3410111 + ... + 3429849.
It is an arithmetic number, because the mean of its divisors is an integer number (2968520940).
Almost surely, 267506985220 is an apocalyptic number.
It is an amenable number.
67506985220 is an abundant number, since it is smaller than the sum of its proper divisors (74982019900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67506985220 is a wasteful number, since it uses less digits than its factorization.
67506985220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20612 (or 20610 counting only the distinct ones).
The product of its (nonzero) digits is 1814400, while the sum is 50.
The spelling of 67506985220 in words is "sixty-seven billion, five hundred six million, nine hundred eighty-five thousand, two hundred twenty".
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