Base | Representation |
---|---|
bin | 110010001000… |
… | …010011101111 |
3 | 220201122101021 |
4 | 302020103233 |
5 | 11331004411 |
6 | 1145355011 |
7 | 216461425 |
oct | 62102357 |
9 | 26648337 |
10 | 13141231 |
11 | 7466224 |
12 | 4498a67 |
13 | 295159c |
14 | 1a61115 |
15 | 1248a71 |
hex | c884ef |
13141231 has 2 divisors, whose sum is σ = 13141232. Its totient is φ = 13141230.
The previous prime is 13141207. The next prime is 13141259. The reversal of 13141231 is 13214131.
13141231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13141231 - 29 = 13140719 is a prime.
It is a super-2 number, since 2×131412312 = 345383904390722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13141201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570615 + 6570616.
It is an arithmetic number, because the mean of its divisors is an integer number (6570616).
Almost surely, 213141231 is an apocalyptic number.
13141231 is a deficient number, since it is larger than the sum of its proper divisors (1).
13141231 is an equidigital number, since it uses as much as digits as its factorization.
13141231 is an evil number, because the sum of its binary digits is even.
The product of its digits is 72, while the sum is 16.
The square root of 13141231 is about 3625.0835852432. The cubic root of 13141231 is about 235.9818943785.
Adding to 13141231 its reverse (13214131), we get a palindrome (26355362).
Subtracting 13141231 from its reverse (13214131), we obtain a square (72900 = 2702).
The spelling of 13141231 in words is "thirteen million, one hundred forty-one thousand, two hundred thirty-one".
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