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320330230 = 251129100417
BaseRepresentation
bin10011000101111…
…101100111110110
3211022202110110121
4103011331213312
51124001031410
651441442154
710636522243
oct2305754766
9738673417
10320330230
111548aa930
128b34035a
135149861c
14307865ca
151d1c79da
hex1317d9f6

320330230 has 32 divisors (see below), whose sum is σ = 650708640. Its totient is φ = 112465920.

The previous prime is 320330209. The next prime is 320330233. The reversal of 320330230 is 32033023.

It is a happy number.

It is a super-2 number, since 2×3203302302 = 205222912503705800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320330233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47019 + ... + 53398.

It is an arithmetic number, because the mean of its divisors is an integer number (20334645).

Almost surely, 2320330230 is an apocalyptic number.

320330230 is an abundant number, since it is smaller than the sum of its proper divisors (330378410).

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

320330230 is a wasteful number, since it uses less digits than its factorization.

320330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100464.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 320330230 is about 17897.7716490070. The cubic root of 320330230 is about 684.2255833466.

Adding to 320330230 its reverse (32033023), we get a palindrome (352363253).

It can be divided in two parts, 3203 and 30230, that added together give a palindrome (33433).

The spelling of 320330230 in words is "three hundred twenty million, three hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 638 1595 3190 100417 200834 502085 1004170 1104587 2209174 2912093 5522935 5824186 11045870 14560465 29120930 32033023 64066046 160165115 320330230