Base | Representation |
---|---|
bin | 110100101010… |
… | …101000111001 |
3 | 221222102110102 |
4 | 310222220321 |
5 | 12013244022 |
6 | 1211525145 |
7 | 225231062 |
oct | 64525071 |
9 | 27872412 |
10 | 13806137 |
11 | 787a834 |
12 | 47597b5 |
13 | 2b25117 |
14 | 1b95569 |
15 | 132aa92 |
hex | d2aa39 |
13806137 has 8 divisors (see below), whose sum is σ = 14064960. Its totient is φ = 13549680.
The previous prime is 13806131. The next prime is 13806211. The reversal of 13806137 is 73160831.
13806137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13806137 - 26 = 13806073 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13806131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14564 + ... + 15482.
It is an arithmetic number, because the mean of its divisors is an integer number (1758120).
Almost surely, 213806137 is an apocalyptic number.
It is an amenable number.
13806137 is a deficient number, since it is larger than the sum of its proper divisors (258823).
13806137 is an equidigital number, since it uses as much as digits as its factorization.
13806137 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1183.
The product of its (nonzero) digits is 3024, while the sum is 29.
The square root of 13806137 is about 3715.6610448210. The cubic root of 13806137 is about 239.8965815998.
Adding to 13806137 its reverse (73160831), we get a palindrome (86966968).
The spelling of 13806137 in words is "thirteen million, eight hundred six thousand, one hundred thirty-seven".
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