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18089060 = 2251182223
BaseRepresentation
bin100010100000…
…0010001100100
31021001000112012
41011000101210
514112322220
61443413352
7306516533
oct105002144
937030465
1018089060
11a235640
126084258
1339946b2
14258c31a
1518c4ac5
hex1140464

18089060 has 24 divisors (see below), whose sum is σ = 41440896. Its totient is φ = 6577760.

The previous prime is 18089039. The next prime is 18089081. The reversal of 18089060 is 6098081.

It is an interprime number because it is at equal distance from previous prime (18089039) and next prime (18089081).

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 40892 + ... + 41331.

It is an arithmetic number, because the mean of its divisors is an integer number (1726704).

Almost surely, 218089060 is an apocalyptic number.

18089060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18089060 is an abundant number, since it is smaller than the sum of its proper divisors (23351836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18089060 is a wasteful number, since it uses less digits than its factorization.

18089060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82243 (or 82241 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 18089060 is about 4253.1235580453. The cubic root of 18089060 is about 262.5056567186.

The spelling of 18089060 in words is "eighteen million, eighty-nine thousand, sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 82223 164446 328892 411115 822230 904453 1644460 1808906 3617812 4522265 9044530 18089060