Base | Representation |
---|---|
bin | 1000001100000… |
… | …01011100111011 |
3 | 11210020200202222 |
4 | 10012001130323 |
5 | 120041001200 |
6 | 10452114255 |
7 | 1462556420 |
oct | 406013473 |
9 | 153220688 |
10 | 68687675 |
11 | 35855081 |
12 | 1b00598b |
13 | 112cc3c4 |
14 | 919dd47 |
15 | 606bd85 |
hex | 418173b |
68687675 has 24 divisors (see below), whose sum is σ = 97687200. Its totient is φ = 46932480.
The previous prime is 68687579. The next prime is 68687699. The reversal of 68687675 is 57678686.
It is not a de Polignac number, because 68687675 - 218 = 68425531 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67571 + ... + 68579.
It is an arithmetic number, because the mean of its divisors is an integer number (4070300).
Almost surely, 268687675 is an apocalyptic number.
68687675 is a deficient number, since it is larger than the sum of its proper divisors (28999525).
68687675 is a wasteful number, since it uses less digits than its factorization.
68687675 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1415 (or 1410 counting only the distinct ones).
The product of its digits is 3386880, while the sum is 53.
The square root of 68687675 is about 8287.8027848158. The cubic root of 68687675 is about 409.5368058782.
The spelling of 68687675 in words is "sixty-eight million, six hundred eighty-seven thousand, six hundred seventy-five".
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