Base | Representation |
---|---|
bin | 1000010010110… |
… | …00011001011010 |
3 | 11211220102110221 |
4 | 10021120121122 |
5 | 120302134330 |
6 | 10523030254 |
7 | 1503214264 |
oct | 411303132 |
9 | 154812427 |
10 | 69568090 |
11 | 362a6599 |
12 | 1b36b38a |
13 | 1154a067 |
14 | 934cb34 |
15 | 6192b7a |
hex | 425865a |
69568090 has 8 divisors (see below), whose sum is σ = 125222580. Its totient is φ = 27827232.
The previous prime is 69568069. The next prime is 69568091. The reversal of 69568090 is 9086596.
It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 1390041 = 8257^2 + 1179^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (69568091) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 3478395 + ... + 3478414.
Almost surely, 269568090 is an apocalyptic number.
69568090 is a deficient number, since it is larger than the sum of its proper divisors (55654490).
69568090 is a wasteful number, since it uses less digits than its factorization.
69568090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6956816.
The product of its (nonzero) digits is 116640, while the sum is 43.
The square root of 69568090 is about 8340.7487673470. The cubic root of 69568090 is about 411.2791500111.
The spelling of 69568090 in words is "sixty-nine million, five hundred sixty-eight thousand, ninety".
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