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18711482 = 271131771
BaseRepresentation
bin100011101100…
…0001110111010
31022012122022212
41013120032322
514242231412
61505015122
7315021266
oct107301672
938178285
1018711482
11a620239
1263244a2
133b51aaa
1426b10a6
151999222
hex11d83ba

18711482 has 8 divisors (see below), whose sum is σ = 28462752. Its totient is φ = 9223900.

The previous prime is 18711479. The next prime is 18711487. The reversal of 18711482 is 28411781.

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

It is not an unprimeable number, because it can be changed into a prime (18711487) 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, 65744 + ... + 66027.

It is an arithmetic number, because the mean of its divisors is an integer number (3557844).

Almost surely, 218711482 is an apocalyptic number.

18711482 is a deficient number, since it is larger than the sum of its proper divisors (9751270).

18711482 is a wasteful number, since it uses less digits than its factorization.

18711482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131844.

The product of its digits is 3584, while the sum is 32.

The square root of 18711482 is about 4325.6770568317. The cubic root of 18711482 is about 265.4825998813.

The spelling of 18711482 in words is "eighteen million, seven hundred eleven thousand, four hundred eighty-two".

Divisors: 1 2 71 142 131771 263542 9355741 18711482