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34042143 = 3172923017
BaseRepresentation
bin1000000111011…
…1000100011111
32101001112001010
42001313010133
532203322033
63213350303
7562232142
oct201670437
971045033
1034042143
1118241403
12b498393
13708baa5
144742059
152ec6863
hex207711f

34042143 has 16 divisors (see below), whose sum is σ = 49718880. Its totient is φ = 20622336.

The previous prime is 34042081. The next prime is 34042181. The reversal of 34042143 is 34124043.

34042143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34042143 - 212 = 34038047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34042843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10030 + ... + 12987.

It is an arithmetic number, because the mean of its divisors is an integer number (3107430).

Almost surely, 234042143 is an apocalyptic number.

34042143 is a deficient number, since it is larger than the sum of its proper divisors (15676737).

34042143 is a wasteful number, since it uses less digits than its factorization.

34042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23066.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 34042143 is about 5834.5645081703. The cubic root of 34042143 is about 324.0949748244.

Adding to 34042143 its reverse (34124043), we get a palindrome (68166186).

The spelling of 34042143 in words is "thirty-four million, forty-two thousand, one hundred forty-three".

Divisors: 1 3 17 29 51 87 493 1479 23017 69051 391289 667493 1173867 2002479 11347381 34042143