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18055068 = 2231504589
BaseRepresentation
bin100010011011…
…1111110011100
31020222021220020
41010313332130
514110230233
61442552140
7306315453
oct104677634
936867806
1018055068
11a212049
126068650
133982095
14257db9a
1518b99b3
hex1137f9c

18055068 has 12 divisors (see below), whose sum is σ = 42128520. Its totient is φ = 6018352.

The previous prime is 18055061. The next prime is 18055091. The reversal of 18055068 is 86055081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18055061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752283 + ... + 752306.

It is an arithmetic number, because the mean of its divisors is an integer number (3510710).

Almost surely, 218055068 is an apocalyptic number.

It is an amenable number.

18055068 is an abundant number, since it is smaller than the sum of its proper divisors (24073452).

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

18055068 is a wasteful number, since it uses less digits than its factorization.

18055068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504596 (or 1504594 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 18055068 is about 4249.1255571000. The cubic root of 18055068 is about 262.3411247235.

The spelling of 18055068 in words is "eighteen million, fifty-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 1504589 3009178 4513767 6018356 9027534 18055068