Base | Representation |
---|---|
bin | 1111100101000… |
… | …00111000010001 |
3 | 100002220100112100 |
4 | 13302200320101 |
5 | 231423314020 |
6 | 20544551013 |
7 | 3144532131 |
oct | 762407021 |
9 | 302810470 |
10 | 130682385 |
11 | 67848679 |
12 | 37922469 |
13 | 210c7272 |
14 | 134daac1 |
15 | b715a90 |
hex | 7ca0e11 |
130682385 has 24 divisors (see below), whose sum is σ = 228766824. Its totient is φ = 69004800.
The previous prime is 130682369. The next prime is 130682393. The reversal of 130682385 is 583286031.
It can be written as a sum of positive squares in 4 ways, for example, as 76527504 + 54154881 = 8748^2 + 7359^2 .
It is not a de Polignac number, because 130682385 - 24 = 130682369 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9832 + ... + 18921.
It is an arithmetic number, because the mean of its divisors is an integer number (9531951).
Almost surely, 2130682385 is an apocalyptic number.
130682385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
130682385 is a deficient number, since it is larger than the sum of its proper divisors (98084439).
130682385 is a wasteful number, since it uses less digits than its factorization.
130682385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28865 (or 28862 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 36.
The square root of 130682385 is about 11431.6396461750. The cubic root of 130682385 is about 507.4645206417.
The spelling of 130682385 in words is "one hundred thirty million, six hundred eighty-two thousand, three hundred eighty-five".
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