Base | Representation |
---|---|
bin | 1000001101100… |
… | …01110010100110 |
3 | 11210121202101010 |
4 | 10012301302212 |
5 | 120113320140 |
6 | 10500243050 |
7 | 1464342600 |
oct | 406616246 |
9 | 153552333 |
10 | 68885670 |
11 | 3597a907 |
12 | 1b0a0486 |
13 | 1136b569 |
14 | 9212170 |
15 | 60aa880 |
hex | 41b1ca6 |
68885670 has 48 divisors (see below), whose sum is σ = 192321648. Its totient is φ = 15744960.
The previous prime is 68885657. The next prime is 68885723. The reversal of 68885670 is 7658886.
It is a happy number.
It is a congruent number.
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, 21961 + ... + 24900.
It is an arithmetic number, because the mean of its divisors is an integer number (4006701).
Almost surely, 268885670 is an apocalyptic number.
68885670 is an abundant number, since it is smaller than the sum of its proper divisors (123435978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68885670 is a wasteful number, since it uses less digits than its factorization.
68885670 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46885 (or 46878 counting only the distinct ones).
The product of its (nonzero) digits is 645120, while the sum is 48.
The square root of 68885670 is about 8299.7391525276. The cubic root of 68885670 is about 409.9299305203.
The spelling of 68885670 in words is "sixty-eight million, eight hundred eighty-five thousand, six hundred seventy".
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