Base | Representation |
---|---|
bin | 1000001011011… |
… | …10100010001010 |
3 | 11210002202111000 |
4 | 10011232202022 |
5 | 120031011221 |
6 | 10450315430 |
7 | 1462114461 |
oct | 405564212 |
9 | 153082430 |
10 | 68610186 |
11 | 35801937 |
12 | 1ab88b76 |
13 | 112a3058 |
14 | 917d9d8 |
15 | 6053e26 |
hex | 416e88a |
68610186 has 16 divisors (see below), whose sum is σ = 152467200. Its totient is φ = 22870044.
The previous prime is 68610151. The next prime is 68610203. The reversal of 68610186 is 68101686.
It is a self number, because there is not a number n which added to its sum of digits gives 68610186.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635226 + ... + 635333.
It is an arithmetic number, because the mean of its divisors is an integer number (9529200).
Almost surely, 268610186 is an apocalyptic number.
68610186 is an abundant number, since it is smaller than the sum of its proper divisors (83857014).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68610186 is a wasteful number, since it uses less digits than its factorization.
68610186 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1270570 (or 1270564 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 68610186 is about 8283.1265836036. The cubic root of 68610186 is about 409.3827436019.
The spelling of 68610186 in words is "sixty-eight million, six hundred ten thousand, one hundred eighty-six".
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