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42071211 = 3371317123
BaseRepresentation
bin1010000001111…
…1010010101011
32221011102212000
42200133102223
541232234321
64101422043
71020412410
oct240372253
987142760
1042071211
11218257a6
121210a923
138940510
145832107
153a60826
hex281f4ab

42071211 has 32 divisors (see below), whose sum is σ = 76715520. Its totient is φ = 22190112.

The previous prime is 42071201. The next prime is 42071231. The reversal of 42071211 is 11217024.

42071211 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 42071211 - 211 = 42069163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42071201) 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 31 ways as a sum of consecutive naturals, for example, 6105 + ... + 11018.

It is an arithmetic number, because the mean of its divisors is an integer number (2397360).

Almost surely, 242071211 is an apocalyptic number.

42071211 is a deficient number, since it is larger than the sum of its proper divisors (34644309).

42071211 is a wasteful number, since it uses less digits than its factorization.

42071211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17152 (or 17146 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 42071211 is about 6486.2324195175. The cubic root of 42071211 is about 347.7990070034.

Adding to 42071211 its reverse (11217024), we get a palindrome (53288235).

It can be divided in two parts, 420 and 71211, that added together give a triangular number (71631 = T378).

The spelling of 42071211 in words is "forty-two million, seventy-one thousand, two hundred eleven".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 189 273 351 819 2457 17123 51369 119861 154107 222599 359583 462321 667797 1078749 1558193 2003391 3236247 4674579 6010173 14023737 42071211