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18827084 = 225388807
BaseRepresentation
bin100011111010…
…0011101001100
31022102111220102
41013310131030
514304431314
61511310232
7316012313
oct107643514
938374812
1018827084
11a69a081
12637b378
133b925b3
14270127a
1519bd5de
hex11f474c

18827084 has 12 divisors (see below), whose sum is σ = 33569424. Its totient is φ = 9235824.

The previous prime is 18827063. The next prime is 18827089. The reversal of 18827084 is 48072881.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18827089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44192 + ... + 44615.

It is an arithmetic number, because the mean of its divisors is an integer number (2797452).

Almost surely, 218827084 is an apocalyptic number.

It is an amenable number.

18827084 is a deficient number, since it is larger than the sum of its proper divisors (14742340).

18827084 is a wasteful number, since it uses less digits than its factorization.

18827084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88864 (or 88862 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 18827084 is about 4339.0187830891. The cubic root of 18827084 is about 266.0282066307.

It can be divided in two parts, 188 and 27084, that added together give a palindrome (27272).

The spelling of 18827084 in words is "eighteen million, eight hundred twenty-seven thousand, eighty-four".

Divisors: 1 2 4 53 106 212 88807 177614 355228 4706771 9413542 18827084