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18827034 = 234372973
BaseRepresentation
bin100011111010…
…0011100011010
31022102111211120
41013310130122
514304431114
61511310110
7316012212
oct107643432
938374746
1018827034
11a69a036
12637b336
133b92575
142701242
1519bd5a9
hex11f471a

18827034 has 16 divisors (see below), whose sum is σ = 38530272. Its totient is φ = 6129648.

The previous prime is 18827027. The next prime is 18827059. The reversal of 18827034 is 43072881.

It is a junction number, because it is equal to n+sod(n) for n = 18826986 and 18827004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36229 + ... + 36744.

It is an arithmetic number, because the mean of its divisors is an integer number (2408142).

Almost surely, 218827034 is an apocalyptic number.

18827034 is an abundant number, since it is smaller than the sum of its proper divisors (19703238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18827034 is a wasteful number, since it uses less digits than its factorization.

18827034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73021.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 18827034 is about 4339.0130214140. The cubic root of 18827034 is about 266.0279711291.

The spelling of 18827034 in words is "eighteen million, eight hundred twenty-seven thousand, thirty-four".

Divisors: 1 2 3 6 43 86 129 258 72973 145946 218919 437838 3137839 6275678 9413517 18827034