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220120342 = 21353159739
BaseRepresentation
bin11010001111011…
…00010100010110
3120100012021100021
431013230110112
5422322322332
633501535354
75311664161
oct1507542426
9510167307
10220120342
11103285742
126187455a
13367b0430
142133cad8
15144d0c97
hexd1ec516

220120342 has 16 divisors (see below), whose sum is σ = 362290320. Its totient is φ = 99676512.

The previous prime is 220120283. The next prime is 220120343. The reversal of 220120342 is 243021022.

220120342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120343) 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, 78492 + ... + 81247.

It is an arithmetic number, because the mean of its divisors is an integer number (22643145).

Almost surely, 2220120342 is an apocalyptic number.

220120342 is a deficient number, since it is larger than the sum of its proper divisors (142169978).

220120342 is a wasteful number, since it uses less digits than its factorization.

220120342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159807.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220120342 is about 14836.4531475687. The cubic root of 220120342 is about 603.7911266273.

Adding to 220120342 its reverse (243021022), we get a palindrome (463141364).

The spelling of 220120342 in words is "two hundred twenty million, one hundred twenty thousand, three hundred forty-two".

Divisors: 1 2 13 26 53 106 689 1378 159739 319478 2076607 4153214 8466167 16932334 110060171 220120342