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18200086 = 229273109
BaseRepresentation
bin100010101101…
…1011000010110
31021020122211021
41011123120112
514124400321
61450031354
7310461322
oct105333026
937218737
1018200086
11a300aa3
12611855a
133a030a8
1425ba982
1518e7941
hex115b616

18200086 has 8 divisors (see below), whose sum is σ = 27318240. Its totient is φ = 9094008.

The previous prime is 18200059. The next prime is 18200087. The reversal of 18200086 is 68000281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18200086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300 + ... + 7408.

It is an arithmetic number, because the mean of its divisors is an integer number (3414780).

Almost surely, 218200086 is an apocalyptic number.

18200086 is a deficient number, since it is larger than the sum of its proper divisors (9118154).

18200086 is a wasteful number, since it uses less digits than its factorization.

18200086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6038.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 18200086 is about 4266.1558808839. The cubic root of 18200086 is about 263.0416257419.

The spelling of 18200086 in words is "eighteen million, two hundred thousand, eighty-six".

Divisors: 1 2 2927 3109 5854 6218 9100043 18200086