Base | Representation |
---|---|
bin | 111101101110… |
… | …001101110111 |
3 | 1010110000220111 |
4 | 331232031313 |
5 | 13120230322 |
6 | 1334443451 |
7 | 254346160 |
oct | 75561567 |
9 | 33400814 |
10 | 16180087 |
11 | 9151380 |
12 | 5503587 |
13 | 3476821 |
14 | 2212767 |
15 | 1649177 |
hex | f6e377 |
16180087 has 8 divisors (see below), whose sum is σ = 20172672. Its totient is φ = 12607800.
The previous prime is 16180037. The next prime is 16180091. The reversal of 16180087 is 78008161.
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 16180087 - 215 = 16147319 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (16180007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104989 + ... + 105142.
It is an arithmetic number, because the mean of its divisors is an integer number (2521584).
Almost surely, 216180087 is an apocalyptic number.
16180087 is a deficient number, since it is larger than the sum of its proper divisors (3992585).
16180087 is a wasteful number, since it uses less digits than its factorization.
16180087 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 210149.
The product of its (nonzero) digits is 2688, while the sum is 31.
The square root of 16180087 is about 4022.4478865487. The cubic root of 16180087 is about 252.9260825477.
The spelling of 16180087 in words is "sixteen million, one hundred eighty thousand, eighty-seven".
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