Base | Representation |
---|---|
bin | 110100101010… |
… | …110111011111 |
3 | 221222110202000 |
4 | 310222313133 |
5 | 12013311241 |
6 | 1211533343 |
7 | 225233565 |
oct | 64526737 |
9 | 27873660 |
10 | 13807071 |
11 | 7880503 |
12 | 475a253 |
13 | 2b25685 |
14 | 1b95a35 |
15 | 132aeb6 |
hex | d2addf |
13807071 has 16 divisors (see below), whose sum is σ = 20519520. Its totient is φ = 9175680.
The previous prime is 13807063. The next prime is 13807081. The reversal of 13807071 is 17070831.
It is not a de Polignac number, because 13807071 - 23 = 13807063 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13807081) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11101 + ... + 12281.
It is an arithmetic number, because the mean of its divisors is an integer number (1282470).
Almost surely, 213807071 is an apocalyptic number.
13807071 is a deficient number, since it is larger than the sum of its proper divisors (6712449).
13807071 is a wasteful number, since it uses less digits than its factorization.
13807071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1623 (or 1617 counting only the distinct ones).
The product of its (nonzero) digits is 1176, while the sum is 27.
The square root of 13807071 is about 3715.7867269261. The cubic root of 13807071 is about 239.9019912316.
The spelling of 13807071 in words is "thirteen million, eight hundred seven thousand, seventy-one".
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