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42150142 = 231797853
BaseRepresentation
bin1010000011001…
…0100011111110
32221022110010101
42200302203332
541242301032
64103231314
71021161466
oct240624376
987273111
1042150142
112187a031
121214853a
13896a418
145852ba6
153a78de7
hex28328fe

42150142 has 16 divisors (see below), whose sum is σ = 65423232. Its totient is φ = 20345760.

The previous prime is 42150047. The next prime is 42150149. The reversal of 42150142 is 24105124.

42150142 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 (42150149) 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 7 ways as a sum of consecutive naturals, for example, 48988 + ... + 49840.

It is an arithmetic number, because the mean of its divisors is an integer number (4088952).

Almost surely, 242150142 is an apocalyptic number.

42150142 is a deficient number, since it is larger than the sum of its proper divisors (23273090).

42150142 is a wasteful number, since it uses less digits than its factorization.

42150142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 42150142 is about 6492.3140712692. The cubic root of 42150142 is about 348.0163763377.

Adding to 42150142 its reverse (24105124), we get a palindrome (66255266).

The spelling of 42150142 in words is "forty-two million, one hundred fifty thousand, one hundred forty-two".

Divisors: 1 2 31 62 797 853 1594 1706 24707 26443 49414 52886 679841 1359682 21075071 42150142