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201223330 = 25711261329
BaseRepresentation
bin10111111111001…
…10110010100010
3112000122012111221
423333212302202
5403003121310
631544525254
74662240640
oct1377466242
9460565457
10201223330
11a3649080
125748082a
13328c5079
141ca20190
15129ebada
hexbfe6ca2

201223330 has 32 divisors (see below), whose sum is σ = 451578240. Its totient is φ = 62718720.

The previous prime is 201223313. The next prime is 201223369. The reversal of 201223330 is 33322102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129895 + ... + 131434.

It is an arithmetic number, because the mean of its divisors is an integer number (14111820).

Almost surely, 2201223330 is an apocalyptic number.

201223330 is an abundant number, since it is smaller than the sum of its proper divisors (250354910).

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

201223330 is a wasteful number, since it uses less digits than its factorization.

201223330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261354.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 201223330 is about 14185.3209339796. The cubic root of 201223330 is about 585.9934710219.

Adding to 201223330 its reverse (33322102), we get a palindrome (234545432).

The spelling of 201223330 in words is "two hundred one million, two hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 261329 522658 1306645 1829303 2613290 2874619 3658606 5749238 9146515 14373095 18293030 20122333 28746190 40244666 100611665 201223330