Base | Representation |
---|---|
bin | 1000000111111… |
… | …01011011001000 |
3 | 11202020012221211 |
4 | 10003331123020 |
5 | 114421200023 |
6 | 10432342504 |
7 | 1455144655 |
oct | 403753310 |
9 | 152205854 |
10 | 68146888 |
11 | 35515847 |
12 | 1a9a4a34 |
13 | 11170204 |
14 | 909cc2c |
15 | 5eb1a0d |
hex | 40fd6c8 |
68146888 has 16 divisors (see below), whose sum is σ = 129942000. Its totient is φ = 33495696.
The previous prime is 68146867. The next prime is 68146889. The reversal of 68146888 is 88864186.
It is not an unprimeable number, because it can be changed into a prime (68146889) 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 3 ways as a sum of consecutive naturals, for example, 71718 + ... + 72661.
It is an arithmetic number, because the mean of its divisors is an integer number (8121375).
Almost surely, 268146888 is an apocalyptic number.
It is an amenable number.
68146888 is a deficient number, since it is larger than the sum of its proper divisors (61795112).
68146888 is a wasteful number, since it uses less digits than its factorization.
68146888 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 144444 (or 144440 counting only the distinct ones).
The product of its digits is 589824, while the sum is 49.
The square root of 68146888 is about 8255.1128399314. The cubic root of 68146888 is about 408.4591940031.
It can be divided in two parts, 6 and 8146888, that multiplied together give a triangular number (48881328 = T9887).
The spelling of 68146888 in words is "sixty-eight million, one hundred forty-six thousand, eight hundred eighty-eight".
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