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305430230 = 2572623327
BaseRepresentation
bin10010001101000…
…111111011010110
3210021201110111202
4102031013323112
51111142231410
650150232502
710366054100
oct2215077326
9707643452
10305430230
11147453286
1286355732
134b37c661
142c7c8570
151bc32ca5
hex12347ed6

305430230 has 24 divisors (see below), whose sum is σ = 639534528. Its totient is φ = 104718768.

The previous prime is 305430217. The next prime is 305430239. The reversal of 305430230 is 32034503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305430239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311174 + ... + 312153.

It is an arithmetic number, because the mean of its divisors is an integer number (26647272).

Almost surely, 2305430230 is an apocalyptic number.

305430230 is an abundant number, since it is smaller than the sum of its proper divisors (334104298).

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

305430230 is a wasteful number, since it uses less digits than its factorization.

305430230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623348 (or 623341 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 305430230 is about 17476.5623049844. The cubic root of 305430230 is about 673.4479052715.

Adding to 305430230 its reverse (32034503), we get a palindrome (337464733).

The spelling of 305430230 in words is "three hundred five million, four hundred thirty thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 623327 1246654 3116635 4363289 6233270 8726578 21816445 30543023 43632890 61086046 152715115 305430230