Search a number
-
+
42542711 = 371149803
BaseRepresentation
bin1010001001001…
…0011001110111
32222001101121222
42202102121313
541342331321
64115500555
71024415141
oct242223167
988041558
1042542711
1122017a72
12122b775b
138a77003
145915c91
153b053ab
hex2892677

42542711 has 4 divisors (see below), whose sum is σ = 43692552. Its totient is φ = 41392872.

The previous prime is 42542701. The next prime is 42542713. The reversal of 42542711 is 11724524.

42542711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42542711 - 210 = 42541687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542713) 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 3 ways as a sum of consecutive naturals, for example, 574865 + ... + 574938.

It is an arithmetic number, because the mean of its divisors is an integer number (10923138).

Almost surely, 242542711 is an apocalyptic number.

42542711 is a deficient number, since it is larger than the sum of its proper divisors (1149841).

42542711 is a wasteful number, since it uses less digits than its factorization.

42542711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149840.

The product of its digits is 2240, while the sum is 26.

The square root of 42542711 is about 6522.4773667679. The cubic root of 42542711 is about 349.0934662623.

The spelling of 42542711 in words is "forty-two million, five hundred forty-two thousand, seven hundred eleven".

Divisors: 1 37 1149803 42542711