Base | Representation |
---|---|
bin | 1111100001101… |
… | …01011011000001 |
3 | 100002001222202201 |
4 | 13300311123001 |
5 | 231320222431 |
6 | 20531313201 |
7 | 3141016663 |
oct | 760653301 |
9 | 302058681 |
10 | 130242241 |
11 | 67577a18 |
12 | 3774b801 |
13 | 20ca1b1c |
14 | 13424533 |
15 | b67a461 |
hex | 7c356c1 |
130242241 has 4 divisors (see below), whose sum is σ = 131116500. Its totient is φ = 129367984.
The previous prime is 130242239. The next prime is 130242251. The reversal of 130242241 is 142242031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142242031 = 137 ⋅1038263.
It can be written as a sum of positive squares in 2 ways, for example, as 66178225 + 64064016 = 8135^2 + 8004^2 .
It is a cyclic number.
It is not a de Polignac number, because 130242241 - 21 = 130242239 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130242221) 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, 436906 + ... + 437203.
It is an arithmetic number, because the mean of its divisors is an integer number (32779125).
Almost surely, 2130242241 is an apocalyptic number.
It is an amenable number.
130242241 is a deficient number, since it is larger than the sum of its proper divisors (874259).
130242241 is an equidigital number, since it uses as much as digits as its factorization.
130242241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 874258.
The product of its (nonzero) digits is 384, while the sum is 19.
The square root of 130242241 is about 11412.3722774890. The cubic root of 130242241 is about 506.8941589119.
Adding to 130242241 its reverse (142242031), we get a palindrome (272484272).
The spelling of 130242241 in words is "one hundred thirty million, two hundred forty-two thousand, two hundred forty-one".
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