Base | Representation |
---|---|
bin | 1000000110111… |
… | …11011000000010 |
3 | 11201222222010101 |
4 | 10003133120002 |
5 | 114403230220 |
6 | 10425553014 |
7 | 1454123101 |
oct | 403373002 |
9 | 151888111 |
10 | 68023810 |
11 | 35441328 |
12 | 1a94576a |
13 | 1112919a |
14 | 906a038 |
15 | 5e8a30a |
hex | 40df602 |
68023810 has 16 divisors (see below), whose sum is σ = 122818752. Its totient is φ = 27126000.
The previous prime is 68023799. The next prime is 68023831. The reversal of 68023810 is 1832086.
It is a super-2 number, since 2×680238102 = 9254477453832200, which contains 22 as substring.
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, 6966 + ... + 13585.
It is an arithmetic number, because the mean of its divisors is an integer number (7676172).
Almost surely, 268023810 is an apocalyptic number.
68023810 is a deficient number, since it is larger than the sum of its proper divisors (54794942).
68023810 is a wasteful number, since it uses less digits than its factorization.
68023810 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20889.
The product of its (nonzero) digits is 2304, while the sum is 28.
The square root of 68023810 is about 8247.6548181892. The cubic root of 68023810 is about 408.2131439502.
Adding to 68023810 its reverse (1832086), we get a palindrome (69855896).
The spelling of 68023810 in words is "sixty-eight million, twenty-three thousand, eight hundred ten".
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