Base | Representation |
---|---|
bin | 1000001100001… |
… | …01000111111110 |
3 | 11210021110102010 |
4 | 10012011013332 |
5 | 120041441333 |
6 | 10452312050 |
7 | 1462651320 |
oct | 406050776 |
9 | 153243363 |
10 | 68702718 |
11 | 35865407 |
12 | 1b012626 |
13 | 113061c6 |
14 | 91a5610 |
15 | 6071563 |
hex | 41851fe |
68702718 has 32 divisors (see below), whose sum is σ = 157418496. Its totient is φ = 19581408.
The previous prime is 68702717. The next prime is 68702731. The reversal of 68702718 is 81720786.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68702717) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17680 + ... + 21212.
It is an arithmetic number, because the mean of its divisors is an integer number (4919328).
Almost surely, 268702718 is an apocalyptic number.
68702718 is an abundant number, since it is smaller than the sum of its proper divisors (88715778).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68702718 is a wasteful number, since it uses less digits than its factorization.
68702718 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4008.
The product of its (nonzero) digits is 37632, while the sum is 39.
The square root of 68702718 is about 8288.7102736192. The cubic root of 68702718 is about 409.5667006761.
The spelling of 68702718 in words is "sixty-eight million, seven hundred two thousand, seven hundred eighteen".
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