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18027532 = 229074969
BaseRepresentation
bin100010011000…
…1010000001100
31020220220010101
41010301100030
514103340112
61442220444
7306142255
oct104612014
936826111
1018027532
11a1a3396
126054724
1339726a3
142573b2c
1518b1757
hex113140c

18027532 has 12 divisors (see below), whose sum is σ = 31589320. Its totient is φ = 9002016.

The previous prime is 18027521. The next prime is 18027533. The reversal of 18027532 is 23572081.

It is a super-2 number, since 2×180275322 = 649983820022048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18027532.

It is not an unprimeable number, because it can be changed into a prime (18027533) 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, 1144 + ... + 6112.

Almost surely, 218027532 is an apocalyptic number.

It is an amenable number.

18027532 is a deficient number, since it is larger than the sum of its proper divisors (13561788).

18027532 is a wasteful number, since it uses less digits than its factorization.

18027532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880 (or 5878 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 18027532 is about 4245.8841246553. The cubic root of 18027532 is about 262.2076903381.

The spelling of 18027532 in words is "eighteen million, twenty-seven thousand, five hundred thirty-two".

Divisors: 1 2 4 907 1814 3628 4969 9938 19876 4506883 9013766 18027532