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18012675 = 352240169
BaseRepresentation
bin100010010110…
…1101000000011
31020220010202010
41010231220003
514102401200
61442024003
7306051042
oct104555003
936803663
1018012675
11a19320a
126048003
1339689b5
14256c559
1518ac150
hex112da03

18012675 has 12 divisors (see below), whose sum is σ = 29781080. Its totient is φ = 9606720.

The previous prime is 18012671. The next prime is 18012679. The reversal of 18012675 is 57621081.

It is an interprime number because it is at equal distance from previous prime (18012671) and next prime (18012679).

It is not a de Polignac number, because 18012675 - 22 = 18012671 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18012671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120010 + ... + 120159.

Almost surely, 218012675 is an apocalyptic number.

18012675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18012675 is a deficient number, since it is larger than the sum of its proper divisors (11768405).

18012675 is a wasteful number, since it uses less digits than its factorization.

18012675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240182 (or 240177 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 18012675 is about 4244.1341873225. The cubic root of 18012675 is about 262.1356396121.

The spelling of 18012675 in words is "eighteen million, twelve thousand, six hundred seventy-five".

Divisors: 1 3 5 15 25 75 240169 720507 1200845 3602535 6004225 18012675