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18016030 = 253674909
BaseRepresentation
bin100010010111…
…0011100011110
31020220022100101
41010232130132
514103003110
61442051314
7306063604
oct104563436
936808311
1018016030
11a19578a
126049b3a
13396a396
14256d874
1518ad13a
hex112e71e

18016030 has 16 divisors (see below), whose sum is σ = 32523840. Its totient is φ = 7185312.

The previous prime is 18016021. The next prime is 18016043. The reversal of 18016030 is 3061081.

It is a junction number, because it is equal to n+sod(n) for n = 18015989 and 18016007.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1216 + ... + 6124.

It is an arithmetic number, because the mean of its divisors is an integer number (2032740).

Almost surely, 218016030 is an apocalyptic number.

18016030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18016030 is a deficient number, since it is larger than the sum of its proper divisors (14507810).

18016030 is a wasteful number, since it uses less digits than its factorization.

18016030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 18016030 is about 4244.5294203245. The cubic root of 18016030 is about 262.1519135317.

The spelling of 18016030 in words is "eighteen million, sixteen thousand, thirty".

Divisors: 1 2 5 10 367 734 1835 3670 4909 9818 24545 49090 1801603 3603206 9008015 18016030