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42042133 = 719930181
BaseRepresentation
bin1010000001100…
…0001100010101
32221002221222001
42200120030111
541230322013
64101035301
71020231550
oct240301425
987087861
1042042133
1121805971
12120b5b31
138930203
145825697
153a56ddd
hex2818315

42042133 has 8 divisors (see below), whose sum is σ = 48291200. Its totient is φ = 35853840.

The previous prime is 42042109. The next prime is 42042151. The reversal of 42042133 is 33124024.

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

It is a cyclic number.

It is not a de Polignac number, because 42042133 - 29 = 42041621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42042133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42042103) 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, 13698 + ... + 16483.

It is an arithmetic number, because the mean of its divisors is an integer number (6036400).

Almost surely, 242042133 is an apocalyptic number.

It is an amenable number.

42042133 is a deficient number, since it is larger than the sum of its proper divisors (6249067).

42042133 is a wasteful number, since it uses less digits than its factorization.

42042133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30387.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42042133 is about 6483.9905151072. The cubic root of 42042133 is about 347.7188601115.

Adding to 42042133 its reverse (33124024), we get a palindrome (75166157).

The spelling of 42042133 in words is "forty-two million, forty-two thousand, one hundred thirty-three".

Divisors: 1 7 199 1393 30181 211267 6006019 42042133