Base | Representation |
---|---|
bin | 1000010011101… |
… | …00000010101101 |
3 | 11212010011210211 |
4 | 10021310002231 |
5 | 120314300300 |
6 | 10525302421 |
7 | 1504165360 |
oct | 411640255 |
9 | 155104724 |
10 | 69681325 |
11 | 3637367a |
12 | 1b404a11 |
13 | 1158976c |
14 | 937c0d7 |
15 | 61b64ba |
hex | 42740ad |
69681325 has 24 divisors (see below), whose sum is σ = 99146432. Its totient is φ = 47589120.
The previous prime is 69681281. The next prime is 69681331. The reversal of 69681325 is 52318696.
It is not a de Polignac number, because 69681325 - 27 = 69681197 is a prime.
It is a congruent number.
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 23 ways as a sum of consecutive naturals, for example, 53077 + ... + 54373.
Almost surely, 269681325 is an apocalyptic number.
It is an amenable number.
69681325 is a deficient number, since it is larger than the sum of its proper divisors (29465107).
69681325 is a wasteful number, since it uses less digits than its factorization.
69681325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1621 (or 1616 counting only the distinct ones).
The product of its digits is 77760, while the sum is 40.
The square root of 69681325 is about 8347.5340670164. The cubic root of 69681325 is about 411.5021734768.
The spelling of 69681325 in words is "sixty-nine million, six hundred eighty-one thousand, three hundred twenty-five".
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