Base | Representation |
---|---|
bin | 1000000111010… |
… | …10011101010101 |
3 | 11202002021101200 |
4 | 10003222131111 |
5 | 114411203310 |
6 | 10430543113 |
7 | 1454402331 |
oct | 403523525 |
9 | 152067350 |
10 | 68069205 |
11 | 35472446 |
12 | 1a967a99 |
13 | 11143a49 |
14 | 907c7c1 |
15 | 5e989c0 |
hex | 40ea755 |
68069205 has 24 divisors (see below), whose sum is σ = 118180608. Its totient is φ = 36243936.
The previous prime is 68069201. The next prime is 68069219. The reversal of 68069205 is 50296086.
It is not a de Polignac number, because 68069205 - 22 = 68069201 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68069205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68069201) 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 23 ways as a sum of consecutive naturals, for example, 47124 + ... + 48546.
It is an arithmetic number, because the mean of its divisors is an integer number (4924192).
Almost surely, 268069205 is an apocalyptic number.
It is an amenable number.
68069205 is a deficient number, since it is larger than the sum of its proper divisors (50111403).
68069205 is a wasteful number, since it uses less digits than its factorization.
68069205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2497 (or 2494 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The square root of 68069205 is about 8250.4063536289. The cubic root of 68069205 is about 408.3039293927.
The spelling of 68069205 in words is "sixty-eight million, sixty-nine thousand, two hundred five".
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