Base | Representation |
---|---|
bin | 1111100100010… |
… | …00001111000001 |
3 | 100002201020001200 |
4 | 13302020033001 |
5 | 231412101231 |
6 | 20542451413 |
7 | 3143631624 |
oct | 762101701 |
9 | 302636050 |
10 | 130581441 |
11 | 67789851 |
12 | 37893b69 |
13 | 21090333 |
14 | 134b1dbb |
15 | b6e5be6 |
hex | 7c883c1 |
130581441 has 12 divisors (see below), whose sum is σ = 189466368. Its totient is φ = 86662584.
The previous prime is 130581439. The next prime is 130581449. The reversal of 130581441 is 144185031.
It is a happy number.
It is not a de Polignac number, because 130581441 - 21 = 130581439 is a prime.
It is a super-3 number, since 3×1305814413 (a number of 25 digits) contains 333 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (130581449) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30525 + ... + 34538.
It is an arithmetic number, because the mean of its divisors is an integer number (15788864).
Almost surely, 2130581441 is an apocalyptic number.
It is an amenable number.
130581441 is a deficient number, since it is larger than the sum of its proper divisors (58884927).
130581441 is a wasteful number, since it uses less digits than its factorization.
130581441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65292 (or 65289 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 130581441 is about 11427.2236785669. The cubic root of 130581441 is about 507.3338254100. Note that the first 3 decimals are identical.
The spelling of 130581441 in words is "one hundred thirty million, five hundred eighty-one thousand, four hundred forty-one".
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