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315222230 = 25103306041
BaseRepresentation
bin10010110010011…
…110100011010110
3210222010221121102
4102302132203112
51121144102410
651140150102
710545226151
oct2262364326
9728127542
10315222230
11151a31144
1289698332
13503ca63b
142dc16c98
151ca192a5
hex12c9e8d6

315222230 has 16 divisors (see below), whose sum is σ = 572910624. Its totient is φ = 124864320.

The previous prime is 315222221. The next prime is 315222241. The reversal of 315222230 is 32222513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151991 + ... + 154050.

It is an arithmetic number, because the mean of its divisors is an integer number (35806914).

Almost surely, 2315222230 is an apocalyptic number.

315222230 is a deficient number, since it is larger than the sum of its proper divisors (257688394).

315222230 is a wasteful number, since it uses less digits than its factorization.

315222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306151.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 315222230 is about 17754.4988664845. The cubic root of 315222230 is about 680.5691817482.

Adding to 315222230 its reverse (32222513), we get a palindrome (347444743).

The spelling of 315222230 in words is "three hundred fifteen million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 103 206 515 1030 306041 612082 1530205 3060410 31522223 63044446 157611115 315222230