Base | Representation |
---|---|
bin | 100111001010100… |
… | …0011101111111111 |
3 | 10101120210101121112 |
4 | 1032111003233333 |
5 | 10142410040411 |
6 | 334222352235 |
7 | 44365014242 |
oct | 11625035777 |
9 | 3346711545 |
10 | 1314143231 |
11 | 614888295 |
12 | 30812b67b |
13 | 17c34a65b |
14 | c6763259 |
15 | 7a585b8b |
hex | 4e543bff |
1314143231 has 4 divisors (see below), whose sum is σ = 1391445792. Its totient is φ = 1236840672.
The previous prime is 1314143213. The next prime is 1314143239. The reversal of 1314143231 is 1323414131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323414131 = 13 ⋅101801087.
It is a cyclic number.
It is not a de Polignac number, because 1314143231 - 226 = 1247034367 is a prime.
It is a super-2 number, since 2×13141432312 = 3453944863166238722, 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 = 1314143197 and 1314143206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1314143239) 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, 38651255 + ... + 38651288.
It is an arithmetic number, because the mean of its divisors is an integer number (347861448).
Almost surely, 21314143231 is an apocalyptic number.
1314143231 is a deficient number, since it is larger than the sum of its proper divisors (77302561).
1314143231 is an equidigital number, since it uses as much as digits as its factorization.
1314143231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77302560.
The product of its digits is 864, while the sum is 23.
The square root of 1314143231 is about 36251.1135139322. The cubic root of 1314143231 is about 1095.3365189639.
Adding to 1314143231 its reverse (1323414131), we get a palindrome (2637557362).
The spelling of 1314143231 in words is "one billion, three hundred fourteen million, one hundred forty-three thousand, two hundred thirty-one".
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