Base | Representation |
---|---|
bin | 110010001000… |
… | …111011111111 |
3 | 220201202220200 |
4 | 302020323333 |
5 | 11331100212 |
6 | 1145414543 |
7 | 216502065 |
oct | 62107377 |
9 | 26652820 |
10 | 13143807 |
11 | 7468156 |
12 | 449a453 |
13 | 2952801 |
14 | 1a62035 |
15 | 12496dc |
hex | c88eff |
13143807 has 6 divisors (see below), whose sum is σ = 18985512. Its totient is φ = 8762532.
The previous prime is 13143799. The next prime is 13143811. The reversal of 13143807 is 70834131.
It is not a de Polignac number, because 13143807 - 23 = 13143799 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13143817) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 730203 + ... + 730220.
It is an arithmetic number, because the mean of its divisors is an integer number (3164252).
Almost surely, 213143807 is an apocalyptic number.
13143807 is a deficient number, since it is larger than the sum of its proper divisors (5841705).
13143807 is a wasteful number, since it uses less digits than its factorization.
13143807 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1460429 (or 1460426 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 27.
The square root of 13143807 is about 3625.4388699853. The cubic root of 13143807 is about 235.9973127627.
Adding to 13143807 its reverse (70834131), we get a palindrome (83977938).
The spelling of 13143807 in words is "thirteen million, one hundred forty-three thousand, eight hundred seven".
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