Base | Representation |
---|---|
bin | 1111100001011… |
… | …01110100001001 |
3 | 100002000102000122 |
4 | 13300231310021 |
5 | 231313223311 |
6 | 20530513025 |
7 | 3140530100 |
oct | 760556411 |
9 | 302012018 |
10 | 130211081 |
11 | 67556570 |
12 | 37735775 |
13 | 20c908a0 |
14 | 13417037 |
15 | b6710db |
hex | 7c2dd09 |
130211081 has 24 divisors (see below), whose sum is σ = 177960384. Its totient is φ = 93653280.
The previous prime is 130211057. The next prime is 130211093. The reversal of 130211081 is 180112031.
It is not a de Polignac number, because 130211081 - 222 = 126016777 is a prime.
It is a super-3 number, since 3×1302110813 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (130211281) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2285 + ... + 16298.
It is an arithmetic number, because the mean of its divisors is an integer number (7415016).
Almost surely, 2130211081 is an apocalyptic number.
130211081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
130211081 is a deficient number, since it is larger than the sum of its proper divisors (47749303).
130211081 is a wasteful number, since it uses less digits than its factorization.
130211081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18621 (or 18614 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 17.
The square root of 130211081 is about 11411.0070107769. The cubic root of 130211081 is about 506.8537314703.
The spelling of 130211081 in words is "one hundred thirty million, two hundred eleven thousand, eighty-one".
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