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18514434 = 233085739
BaseRepresentation
bin100011010100…
…0001000000010
31021211122000210
41012220020002
514214430214
61500454550
7313240641
oct106501002
937748023
1018514434
11a4a6194
12624a456
133ab31b3
14265d358
15195ab59
hex11a8202

18514434 has 8 divisors (see below), whose sum is σ = 37028880. Its totient is φ = 6171476.

The previous prime is 18514429. The next prime is 18514451. The reversal of 18514434 is 43441581.

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

18514434 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542864 + ... + 1542875.

It is an arithmetic number, because the mean of its divisors is an integer number (4628610).

Almost surely, 218514434 is an apocalyptic number.

18514434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18514434 is a wasteful number, since it uses less digits than its factorization.

18514434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085744.

The product of its digits is 7680, while the sum is 30.

The square root of 18514434 is about 4302.8402247818. The cubic root of 18514434 is about 264.5473892575.

The spelling of 18514434 in words is "eighteen million, five hundred fourteen thousand, four hundred thirty-four".

Divisors: 1 2 3 6 3085739 6171478 9257217 18514434