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18620482 = 29310241
BaseRepresentation
bin100011100001…
…0000001000010
31022001000111111
41013002001002
514231323412
61503033534
7314162056
oct107020102
938030444
1018620482
11a568931
12629b8aa
133b1c54a
142689c66
15197c2a7
hex11c2042

18620482 has 4 divisors (see below), whose sum is σ = 27930726. Its totient is φ = 9310240.

The previous prime is 18620477. The next prime is 18620489. The reversal of 18620482 is 28402681.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 6095961 = 3539^2 + 2469^2 .

It is not an unprimeable number, because it can be changed into a prime (18620489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4655119 + ... + 4655122.

Almost surely, 218620482 is an apocalyptic number.

18620482 is a deficient number, since it is larger than the sum of its proper divisors (9310244).

18620482 is an equidigital number, since it uses as much as digits as its factorization.

18620482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9310243.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 18620482 is about 4315.1456522347. The cubic root of 18620482 is about 265.0515243353.

The spelling of 18620482 in words is "eighteen million, six hundred twenty thousand, four hundred eighty-two".

Divisors: 1 2 9310241 18620482