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34030221 = 315772251
BaseRepresentation
bin1000000111010…
…0001010001101
32101000220200120
42001310022031
532202431341
63213215153
7562152321
oct201641215
971026616
1034030221
1118233455
12b4914b9
137086534
14473b981
152ec3066
hex207428d

34030221 has 8 divisors (see below), whose sum is σ = 45663264. Its totient is φ = 22542000.

The previous prime is 34030207. The next prime is 34030237. The reversal of 34030221 is 12203043.

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

It is not a de Polignac number, because 34030221 - 25 = 34030189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34030221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34030201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35655 + ... + 36596.

It is an arithmetic number, because the mean of its divisors is an integer number (5707908).

Almost surely, 234030221 is an apocalyptic number.

It is an amenable number.

34030221 is a deficient number, since it is larger than the sum of its proper divisors (11633043).

34030221 is a wasteful number, since it uses less digits than its factorization.

34030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72411.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 34030221 is about 5833.5427486220. The cubic root of 34030221 is about 324.0571363190.

Adding to 34030221 its reverse (12203043), we get a palindrome (46233264).

The spelling of 34030221 in words is "thirty-four million, thirty thousand, two hundred twenty-one".

Divisors: 1 3 157 471 72251 216753 11343407 34030221