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230004220 = 225172923327
BaseRepresentation
bin11011011010110…
…01010111111100
3121000210102110211
431231121113330
5432340113340
634453442204
75462001145
oct1555312774
9530712424
10230004220
11108916636
1265040364
1338861194
1422792acc
15152d45ea
hexdb595fc

230004220 has 48 divisors (see below), whose sum is σ = 529079040. Its totient is φ = 83600384.

The previous prime is 230004217. The next prime is 230004223. The reversal of 230004220 is 22400032.

It is an interprime number because it is at equal distance from previous prime (230004217) and next prime (230004223).

It is a self number, because there is not a number n which added to its sum of digits gives 230004220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230004223) 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, 1804 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (11022480).

Almost surely, 2230004220 is an apocalyptic number.

230004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230004220 is an abundant number, since it is smaller than the sum of its proper divisors (299074820).

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

230004220 is a wasteful number, since it uses less digits than its factorization.

230004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23382 (or 23380 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 230004220 is about 15165.8900167448. The cubic root of 230004220 is about 612.6963146921.

Adding to 230004220 its reverse (22400032), we get a palindrome (252404252).

The spelling of 230004220 in words is "two hundred thirty million, four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 29 34 58 68 85 116 145 170 290 340 493 580 986 1972 2465 4930 9860 23327 46654 93308 116635 233270 396559 466540 676483 793118 1352966 1586236 1982795 2705932 3382415 3965590 6764830 7931180 11500211 13529660 23000422 46000844 57501055 115002110 230004220