Base | Representation |
---|---|
bin | 1000001011110… |
… | …01101110001000 |
3 | 11210012002100010 |
4 | 10011321232020 |
5 | 120033443013 |
6 | 10451311520 |
7 | 1462365201 |
oct | 405715610 |
9 | 153162303 |
10 | 68656008 |
11 | 35833303 |
12 | 1abab5a0 |
13 | 112bab75 |
14 | 91925a8 |
15 | 60627c3 |
hex | 4179b88 |
68656008 has 32 divisors (see below), whose sum is σ = 172323360. Its totient is φ = 22794240.
The previous prime is 68655991. The next prime is 68656009. The reversal of 68656008 is 80065686.
It is not an unprimeable number, because it can be changed into a prime (68656009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603 + ... + 11733.
It is an arithmetic number, because the mean of its divisors is an integer number (5385105).
Almost surely, 268656008 is an apocalyptic number.
It is an amenable number.
68656008 is an abundant number, since it is smaller than the sum of its proper divisors (103667352).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68656008 is a wasteful number, since it uses less digits than its factorization.
68656008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11397 (or 11393 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 39.
The square root of 68656008 is about 8285.8921064663. The cubic root of 68656008 is about 409.4738601093.
The spelling of 68656008 in words is "sixty-eight million, six hundred fifty-six thousand, eight".
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