Base | Representation |
---|---|
bin | 1000000111011… |
… | …00000110001100 |
3 | 11202002121121020 |
4 | 10003230012030 |
5 | 114411412131 |
6 | 10431034140 |
7 | 1454431026 |
oct | 403540614 |
9 | 152077536 |
10 | 68075916 |
11 | 35477497 |
12 | 1a96b950 |
13 | 11146b0c |
14 | 9081016 |
15 | 5e9a996 |
hex | 40ec18c |
68075916 has 12 divisors (see below), whose sum is σ = 158843832. Its totient is φ = 22691968.
The previous prime is 68075873. The next prime is 68075947. The reversal of 68075916 is 61957086.
It is a tau number, because it is divible by the number of its divisors (12).
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, 2836485 + ... + 2836508.
It is an arithmetic number, because the mean of its divisors is an integer number (13236986).
Almost surely, 268075916 is an apocalyptic number.
It is an amenable number.
68075916 is an abundant number, since it is smaller than the sum of its proper divisors (90767916).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68075916 is a wasteful number, since it uses less digits than its factorization.
68075916 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5673000 (or 5672998 counting only the distinct ones).
The product of its (nonzero) digits is 90720, while the sum is 42.
The square root of 68075916 is about 8250.8130508454. The cubic root of 68075916 is about 408.3173472940.
The spelling of 68075916 in words is "sixty-eight million, seventy-five thousand, nine hundred sixteen".
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