Base | Representation |
---|---|
bin | 1111100001101… |
… | …01111000100011 |
3 | 100002002002100201 |
4 | 13300311320203 |
5 | 231320303011 |
6 | 20531330031 |
7 | 3141025333 |
oct | 760657043 |
9 | 302062321 |
10 | 130244131 |
11 | 67579386 |
12 | 37750917 |
13 | 20ca2944 |
14 | 134250c3 |
15 | b67acc1 |
hex | 7c35e23 |
130244131 has 4 divisors (see below), whose sum is σ = 131586952. Its totient is φ = 128901312.
The previous prime is 130244117. The next prime is 130244141. The reversal of 130244131 is 131442031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131442031 = 7 ⋅18777433.
It is a cyclic number.
It is not a de Polignac number, because 130244131 - 221 = 128146979 is a prime.
It is a super-2 number, since 2×1302441312 = 33927067319890322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 130244099 and 130244108.
It is not an unprimeable number, because it can be changed into a prime (130244111) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671265 + ... + 671458.
It is an arithmetic number, because the mean of its divisors is an integer number (32896738).
Almost surely, 2130244131 is an apocalyptic number.
130244131 is a deficient number, since it is larger than the sum of its proper divisors (1342821).
130244131 is an equidigital number, since it uses as much as digits as its factorization.
130244131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1342820.
The product of its (nonzero) digits is 288, while the sum is 19.
The square root of 130244131 is about 11412.4550820584. The cubic root of 130244131 is about 506.8966108182.
Adding to 130244131 its reverse (131442031), we get a palindrome (261686162).
The spelling of 130244131 in words is "one hundred thirty million, two hundred forty-four thousand, one hundred thirty-one".
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