Base | Representation |
---|---|
bin | 110011111011… |
… | …011111011111 |
3 | 221121121120001 |
4 | 303323133133 |
5 | 11441104043 |
6 | 1203435131 |
7 | 223465054 |
oct | 63733737 |
9 | 27547501 |
10 | 13613023 |
11 | 7758736 |
12 | 4685aa7 |
13 | 2a88258 |
14 | 1b4502b |
15 | 12dd74d |
hex | cfb7df |
13613023 has 2 divisors, whose sum is σ = 13613024. Its totient is φ = 13613022.
The previous prime is 13613021. The next prime is 13613029. The reversal of 13613023 is 32031631.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13613023 - 21 = 13613021 is a prime.
Together with 13613021, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13613021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6806511 + 6806512.
It is an arithmetic number, because the mean of its divisors is an integer number (6806512).
Almost surely, 213613023 is an apocalyptic number.
13613023 is a deficient number, since it is larger than the sum of its proper divisors (1).
13613023 is an equidigital number, since it uses as much as digits as its factorization.
13613023 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 324, while the sum is 19.
The square root of 13613023 is about 3689.5830387728. The cubic root of 13613023 is about 238.7728039401.
Adding to 13613023 its reverse (32031631), we get a palindrome (45644654).
The spelling of 13613023 in words is "thirteen million, six hundred thirteen thousand, twenty-three".
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