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215330342 = 2521206651
BaseRepresentation
bin11001101010110…
…10111000100110
3120000011220200212
430311122320212
5420111032332
633211135422
75223164153
oct1465327046
9500156625
10215330342
11100603967
1260144572
13357c4106
142085322a
1513d868b2
hexcd5ae26

215330342 has 8 divisors (see below), whose sum is σ = 323617032. Its totient is φ = 107458000.

The previous prime is 215330341. The next prime is 215330351. The reversal of 215330342 is 243033512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215330341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102284 + ... + 104367.

It is an arithmetic number, because the mean of its divisors is an integer number (40452129).

Almost surely, 2215330342 is an apocalyptic number.

215330342 is a deficient number, since it is larger than the sum of its proper divisors (108286690).

215330342 is a wasteful number, since it uses less digits than its factorization.

215330342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207174.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 215330342 is about 14674.1385437102. The cubic root of 215330342 is about 599.3793044127.

Adding to 215330342 its reverse (243033512), we get a palindrome (458363854).

The spelling of 215330342 in words is "two hundred fifteen million, three hundred thirty thousand, three hundred forty-two".

Divisors: 1 2 521 1042 206651 413302 107665171 215330342