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18030230 = 251803023
BaseRepresentation
bin100010011000…
…1111010010110
31020221000211022
41010301322112
514103431410
61442241142
7306153161
oct104617226
936830738
1018030230
11a1a5419
1260561b2
13397399a
142574ad8
1518b2455
hex1131e96

18030230 has 8 divisors (see below), whose sum is σ = 32454432. Its totient is φ = 7212088.

The previous prime is 18030227. The next prime is 18030241. The reversal of 18030230 is 3203081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18030199 and 18030208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901502 + ... + 901521.

It is an arithmetic number, because the mean of its divisors is an integer number (4056804).

Almost surely, 218030230 is an apocalyptic number.

18030230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18030230 is a deficient number, since it is larger than the sum of its proper divisors (14424202).

18030230 is a wasteful number, since it uses less digits than its factorization.

18030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803030.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 18030230 is about 4246.2018322261. The cubic root of 18030230 is about 262.2207703512.

The spelling of 18030230 in words is "eighteen million, thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 1803023 3606046 9015115 18030230