Base | Representation |
---|---|
bin | 110101110111100100… |
… | …110000101010100100 |
3 | 12112022000111000002200 |
4 | 311313210300222210 |
5 | 1421424204400233 |
6 | 42323250534500 |
7 | 4115226560424 |
oct | 656744605244 |
9 | 175260430080 |
10 | 57840700068 |
11 | 22591627068 |
12 | b262897430 |
13 | 55ba2a8c18 |
14 | 2b29bac484 |
15 | 1787dc5313 |
hex | d77930aa4 |
57840700068 has 144 divisors (see below), whose sum is σ = 158312219520. Its totient is φ = 17743836672.
The previous prime is 57840700033. The next prime is 57840700079. The reversal of 57840700068 is 86000704875.
57840700068 is a `hidden beast` number, since 578 + 4 + 0 + 70 + 0 + 0 + 6 + 8 = 666.
57840700068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a junction number, because it is equal to n+sod(n) for n = 57840699996 and 57840700032.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20827096 + ... + 20829872.
Almost surely, 257840700068 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57840700068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79156109760).
57840700068 is an abundant number, since it is smaller than the sum of its proper divisors (100471519452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57840700068 is a wasteful number, since it uses less digits than its factorization.
57840700068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3666 (or 3661 counting only the distinct ones).
The product of its (nonzero) digits is 376320, while the sum is 45.
The spelling of 57840700068 in words is "fifty-seven billion, eight hundred forty million, seven hundred thousand, sixty-eight".
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