Base | Representation |
---|---|
bin | 1000001010100… |
… | …11101000101010 |
3 | 11202220011100102 |
4 | 10011103220222 |
5 | 120014000020 |
6 | 10444105402 |
7 | 1461145325 |
oct | 405235052 |
9 | 152804312 |
10 | 68500010 |
11 | 35737087 |
12 | 1ab35262 |
13 | 11264b67 |
14 | 91517bc |
15 | 6031475 |
hex | 4153a2a |
68500010 has 16 divisors (see below), whose sum is σ = 123459336. Its totient is φ = 27364608.
The previous prime is 68499973. The next prime is 68500037. The reversal of 68500010 is 1000586.
It can be written as a sum of positive squares in 4 ways, for example, as 55547209 + 12952801 = 7453^2 + 3599^2 .
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, 4574 + ... + 12566.
Almost surely, 268500010 is an apocalyptic number.
68500010 is a deficient number, since it is larger than the sum of its proper divisors (54959326).
68500010 is a wasteful number, since it uses less digits than its factorization.
68500010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8857.
The product of its (nonzero) digits is 240, while the sum is 20.
The square root of 68500010 is about 8276.4732827455. The cubic root of 68500010 is about 409.1634937573.
Adding to 68500010 its reverse (1000586), we get a palindrome (69500596).
The spelling of 68500010 in words is "sixty-eight million, five hundred thousand, ten".
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