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42387246 = 2331171359
BaseRepresentation
bin1010000110110…
…0011100101110
32221202111101000
42201230130232
541322342441
64112301130
71023166656
oct241543456
987674330
1042387246
1121a21190
12122417a6
138a21315
1458b5366
153ac42b6
hex286c72e

42387246 has 32 divisors (see below), whose sum is σ = 102758400. Its totient is φ = 12844440.

The previous prime is 42387217. The next prime is 42387287. The reversal of 42387246 is 64278324.

42387246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42387246.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 35086 + ... + 36273.

It is an arithmetic number, because the mean of its divisors is an integer number (3211200).

Almost surely, 242387246 is an apocalyptic number.

42387246 is an abundant number, since it is smaller than the sum of its proper divisors (60371154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42387246 is a wasteful number, since it uses less digits than its factorization.

42387246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71381 (or 71375 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 42387246 is about 6510.5488247920. The cubic root of 42387246 is about 348.6677132720.

The spelling of 42387246 in words is "forty-two million, three hundred eighty-seven thousand, two hundred forty-six".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 99 198 297 594 71359 142718 214077 428154 642231 784949 1284462 1569898 1926693 2354847 3853386 4709694 7064541 14129082 21193623 42387246