Base | Representation |
---|---|
bin | 11001011000110111… |
… | …00110110011100111 |
3 | 1022011220212211012211 |
4 | 30230123212303213 |
5 | 210403331224411 |
6 | 10132305224251 |
7 | 661525642411 |
oct | 145433466347 |
9 | 38156784184 |
10 | 13630336231 |
11 | 5864a73396 |
12 | 2784932087 |
13 | 1392b5c615 |
14 | 93436b9b1 |
15 | 54b963221 |
hex | 32c6e6ce7 |
13630336231 has 2 divisors, whose sum is σ = 13630336232. Its totient is φ = 13630336230.
The previous prime is 13630336219. The next prime is 13630336271. The reversal of 13630336231 is 13263303631.
It is a weak prime.
It is an emirp because it is prime and its reverse (13263303631) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13630336231 is a prime.
It is a super-2 number, since 2×136303362312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 13630336193 and 13630336202.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13630336271) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815168115 + 6815168116.
It is an arithmetic number, because the mean of its divisors is an integer number (6815168116).
Almost surely, 213630336231 is an apocalyptic number.
13630336231 is a deficient number, since it is larger than the sum of its proper divisors (1).
13630336231 is an equidigital number, since it uses as much as digits as its factorization.
13630336231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 17496, while the sum is 31.
Adding to 13630336231 its reverse (13263303631), we get a palindrome (26893639862).
The spelling of 13630336231 in words is "thirteen billion, six hundred thirty million, three hundred thirty-six thousand, two hundred thirty-one".
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