Base | Representation |
---|---|
bin | 1111100001011… |
… | …11010000011001 |
3 | 100002000201010022 |
4 | 13300233100121 |
5 | 231313420420 |
6 | 20531000225 |
7 | 3140553233 |
oct | 760572031 |
9 | 302021108 |
10 | 130216985 |
11 | 6755aa48 |
12 | 37739075 |
13 | 20c93492 |
14 | 13419253 |
15 | b672c25 |
hex | 7c2f419 |
130216985 has 8 divisors (see below), whose sum is σ = 156352896. Its totient is φ = 104111920.
The previous prime is 130216981. The next prime is 130216987. The reversal of 130216985 is 589612031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130216985 - 22 = 130216981 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130216981) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2912 + ... + 16398.
It is an arithmetic number, because the mean of its divisors is an integer number (19544112).
Almost surely, 2130216985 is an apocalyptic number.
It is an amenable number.
130216985 is a deficient number, since it is larger than the sum of its proper divisors (26135911).
130216985 is a wasteful number, since it uses less digits than its factorization.
130216985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15423.
The product of its (nonzero) digits is 12960, while the sum is 35.
The square root of 130216985 is about 11411.2657054334. The cubic root of 130216985 is about 506.8613919018.
The spelling of 130216985 in words is "one hundred thirty million, two hundred sixteen thousand, nine hundred eighty-five".
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