Base | Representation |
---|---|
bin | 1000001101101… |
… | …10111011111110 |
3 | 11210122211021212 |
4 | 10012312323332 |
5 | 120120004000 |
6 | 10500524422 |
7 | 1464461213 |
oct | 406667376 |
9 | 153584255 |
10 | 68906750 |
11 | 35994730 |
12 | 1b0b0712 |
13 | 11378033 |
14 | 9219b0a |
15 | 60b1c35 |
hex | 41b6efe |
68906750 has 32 divisors (see below), whose sum is σ = 140725728. Its totient is φ = 25056000.
The previous prime is 68906743. The next prime is 68906791. The reversal of 68906750 is 5760986.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 68906698 and 68906707.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9779 + ... + 15278.
It is an arithmetic number, because the mean of its divisors is an integer number (4397679).
Almost surely, 268906750 is an apocalyptic number.
68906750 is an abundant number, since it is smaller than the sum of its proper divisors (71818978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68906750 is a wasteful number, since it uses less digits than its factorization.
68906750 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25085 (or 25075 counting only the distinct ones).
The product of its (nonzero) digits is 90720, while the sum is 41.
The square root of 68906750 is about 8301.0089748175. The cubic root of 68906750 is about 409.9717410624.
The spelling of 68906750 in words is "sixty-eight million, nine hundred six thousand, seven hundred fifty".
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