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18225675 = 3352133167
BaseRepresentation
bin100010110000…
…1101000001011
31021021221221000
41011201220023
514131210200
61450350043
7310626036
oct105415013
937257830
1018225675
11a319246
12612b323
133a11930
1425c601d
151900300
hex1161a0b

18225675 has 96 divisors (see below), whose sum is σ = 37775360. Its totient is φ = 8553600.

The previous prime is 18225673. The next prime is 18225733. The reversal of 18225675 is 57652281.

It is a happy number.

It is not a de Polignac number, because 18225675 - 21 = 18225673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18225671) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 271992 + ... + 272058.

Almost surely, 218225675 is an apocalyptic number.

18225675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18225675 is an abundant number, since it is smaller than the sum of its proper divisors (19549685).

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

18225675 is a wasteful number, since it uses less digits than its factorization.

18225675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 119 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 18225675 is about 4269.1538974368. The cubic root of 18225675 is about 263.1648453076.

The spelling of 18225675 in words is "eighteen million, two hundred twenty-five thousand, six hundred seventy-five".

Divisors: 1 3 5 9 13 15 25 27 31 39 45 65 67 75 93 117 135 155 195 201 225 279 325 335 351 403 465 585 603 675 775 837 871 975 1005 1209 1395 1675 1755 1809 2015 2077 2325 2613 2925 3015 3627 4185 4355 5025 6045 6231 6975 7839 8775 9045 10075 10385 10881 13065 15075 18135 18693 20925 21775 23517 27001 30225 31155 39195 45225 51925 54405 56079 65325 81003 90675 93465 117585 135005 155775 195975 243009 272025 280395 405015 467325 587925 675025 729027 1215045 1401975 2025075 3645135 6075225 18225675