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18048032 = 257512
BaseRepresentation
bin100010011011…
…0010000100000
31020221221020122
41010312100200
514110014112
61442455412
7306256112
oct104662040
936857218
1018048032
11a207832
126064568
13397bb12
14257b3b2
1518b7872
hex1136420

18048032 has 18 divisors (see below), whose sum is σ = 35579439. Its totient is φ = 9012000.

The previous prime is 18048029. The next prime is 18048049. The reversal of 18048032 is 23084081.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 9024016 + 9024016 = 3004^2 + 3004^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3004.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18047992 and 18048010.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23657 + ... + 24407.

Almost surely, 218048032 is an apocalyptic number.

It is an amenable number.

18048032 is a deficient number, since it is larger than the sum of its proper divisors (17531407).

18048032 is an frugal number, since it uses more digits than its factorization.

18048032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 18048032 is about 4248.2975413688. The cubic root of 18048032 is about 262.3070424744.

The spelling of 18048032 in words is "eighteen million, forty-eight thousand, thirty-two".

Divisors: 1 2 4 8 16 32 751 1502 3004 6008 12016 24032 564001 1128002 2256004 4512008 9024016 18048032