Base | Representation |
---|---|
bin | 111111101100111… |
… | …101100010001001 |
3 | 2202111001011201211 |
4 | 333230331202021 |
5 | 4142100012420 |
6 | 254015013121 |
7 | 35325143041 |
oct | 7754754211 |
9 | 2674034654 |
10 | 1068750985 |
11 | 4a9311485 |
12 | 259b0a1a1 |
13 | 14055c343 |
14 | a1d26721 |
15 | 63c61e5a |
hex | 3fb3d889 |
1068750985 has 8 divisors (see below), whose sum is σ = 1357942536. Its totient is φ = 804706560.
The previous prime is 1068750979. The next prime is 1068750997. The reversal of 1068750985 is 5890578601.
It can be written as a sum of positive squares in 4 ways, for example, as 59799289 + 1008951696 = 7733^2 + 31764^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1068750985 - 25 = 1068750953 is a prime.
It is a super-2 number, since 2×10687509852 = 2284457335876940450, which contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6286686 + ... + 6286855.
It is an arithmetic number, because the mean of its divisors is an integer number (169742817).
Almost surely, 21068750985 is an apocalyptic number.
It is an amenable number.
1068750985 is a deficient number, since it is larger than the sum of its proper divisors (289191551).
1068750985 is a wasteful number, since it uses less digits than its factorization.
1068750985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12573563.
The product of its (nonzero) digits is 604800, while the sum is 49.
The square root of 1068750985 is about 32691.7571415181. The cubic root of 1068750985 is about 1022.4109905123.
The spelling of 1068750985 in words is "one billion, sixty-eight million, seven hundred fifty thousand, nine hundred eighty-five".
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