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18055042 = 220034507
BaseRepresentation
bin100010011011…
…1111110000010
31020222021212021
41010313332002
514110230132
61442552054
7306315415
oct104677602
936867767
1018055042
11a212025
12606862a
133982075
14257db7c
1518b9997
hex1137f82

18055042 has 8 divisors (see below), whose sum is σ = 27102096. Its totient is φ = 9021012.

The previous prime is 18055031. The next prime is 18055043. The reversal of 18055042 is 24055081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18054998 and 18055016.

It is not an unprimeable number, because it can be changed into a prime (18055043) 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, 1753 + ... + 6259.

It is an arithmetic number, because the mean of its divisors is an integer number (3387762).

Almost surely, 218055042 is an apocalyptic number.

18055042 is a deficient number, since it is larger than the sum of its proper divisors (9047054).

18055042 is a wasteful number, since it uses less digits than its factorization.

18055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6512.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 18055042 is about 4249.1224976458. The cubic root of 18055042 is about 262.3409987963.

The spelling of 18055042 in words is "eighteen million, fifty-five thousand, forty-two".

Divisors: 1 2 2003 4006 4507 9014 9027521 18055042