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18682275 = 352249097
BaseRepresentation
bin100011101000…
…1000110100011
31022011011021010
41013101012203
514240313100
61504232003
7314540163
oct107210643
938134233
1018682275
11a6002a7
12630b603
133b41701
1426a45a3
151990750
hex11d11a3

18682275 has 12 divisors (see below), whose sum is σ = 30888152. Its totient is φ = 9963840.

The previous prime is 18682267. The next prime is 18682289. The reversal of 18682275 is 57228681.

It is not a de Polignac number, because 18682275 - 23 = 18682267 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124474 + ... + 124623.

Almost surely, 218682275 is an apocalyptic number.

18682275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18682275 is a deficient number, since it is larger than the sum of its proper divisors (12205877).

18682275 is a wasteful number, since it uses less digits than its factorization.

18682275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249110 (or 249105 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 18682275 is about 4322.2997350947. The cubic root of 18682275 is about 265.3443961800.

The spelling of 18682275 in words is "eighteen million, six hundred eighty-two thousand, two hundred seventy-five".

Divisors: 1 3 5 15 25 75 249097 747291 1245485 3736455 6227425 18682275