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18127107 = 328832281
BaseRepresentation
bin100010100100…
…1100100000011
31021002221201100
41011021210003
514120031412
61444305443
7310035465
oct105114403
937087640
1018127107
11a261189
1260a2283
1339a8acb
14259c135
1518d0edc
hex1149903

18127107 has 12 divisors (see below), whose sum is σ = 26224744. Its totient is φ = 12065760.

The previous prime is 18127093. The next prime is 18127111. The reversal of 18127107 is 70172181.

It is not a de Polignac number, because 18127107 - 224 = 1349891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18127127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6807 + ... + 9087.

Almost surely, 218127107 is an apocalyptic number.

18127107 is a deficient number, since it is larger than the sum of its proper divisors (8097637).

18127107 is a wasteful number, since it uses less digits than its factorization.

18127107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3170 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 18127107 is about 4257.5940388910. The cubic root of 18127107 is about 262.6895719058.

Adding to 18127107 its reverse (70172181), we get a palindrome (88299288).

The spelling of 18127107 in words is "eighteen million, one hundred twenty-seven thousand, one hundred seven".

Divisors: 1 3 9 883 2281 2649 6843 7947 20529 2014123 6042369 18127107