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42719211 = 332368791
BaseRepresentation
bin1010001011110…
…1011111101011
32222101100202000
42202331133223
541414003321
64123342043
71026051543
oct242753753
988340660
1042719211
1122128637
1212381923
138b09452
145960323
153b3c826
hex28bd7eb

42719211 has 16 divisors (see below), whose sum is σ = 66040320. Its totient is φ = 27240840.

The previous prime is 42719197. The next prime is 42719213. The reversal of 42719211 is 11291724.

It is not a de Polignac number, because 42719211 - 29 = 42718699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42719213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33775 + ... + 35016.

It is an arithmetic number, because the mean of its divisors is an integer number (4127520).

Almost surely, 242719211 is an apocalyptic number.

42719211 is a deficient number, since it is larger than the sum of its proper divisors (23321109).

42719211 is a wasteful number, since it uses less digits than its factorization.

42719211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68823 (or 68817 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 42719211 is about 6535.9934975488. The cubic root of 42719211 is about 349.5755698734.

The spelling of 42719211 in words is "forty-two million, seven hundred nineteen thousand, two hundred eleven".

Divisors: 1 3 9 23 27 69 207 621 68791 206373 619119 1582193 1857357 4746579 14239737 42719211