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42122411 = 192216969
BaseRepresentation
bin1010000010101…
…1110010101011
32221021001002022
42200223302223
541240404121
64102455055
71021014602
oct240536253
987231068
1042122411
1121860211
121213448b
13895a906
145846a39
153a70aab
hex282bcab

42122411 has 4 divisors (see below), whose sum is σ = 44339400. Its totient is φ = 39905424.

The previous prime is 42122393. The next prime is 42122429. The reversal of 42122411 is 11422124.

42122411 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 an interprime number because it is at equal distance from previous prime (42122393) and next prime (42122429).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42122411 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 42122411.

It is not an unprimeable number, because it can be changed into a prime (42122461) 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, 1108466 + ... + 1108503.

It is an arithmetic number, because the mean of its divisors is an integer number (11084850).

Almost surely, 242122411 is an apocalyptic number.

42122411 is a deficient number, since it is larger than the sum of its proper divisors (2216989).

42122411 is a wasteful number, since it uses less digits than its factorization.

42122411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216988.

The product of its digits is 128, while the sum is 17.

The square root of 42122411 is about 6490.1780407012. The cubic root of 42122411 is about 347.9400384425.

Adding to 42122411 its reverse (11422124), we get a palindrome (53544535).

The spelling of 42122411 in words is "forty-two million, one hundred twenty-two thousand, four hundred eleven".

Divisors: 1 19 2216969 42122411