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42758036 = 2250921001
BaseRepresentation
bin1010001100011…
…0111110010100
32222110022222222
42203012332110
541421224121
64124241512
71026302666
oct243067624
988408888
1042758036
1122154822
12123a0298
138b21019
145970536
153b490ab
hex28c6f94

42758036 has 12 divisors (see below), whose sum is σ = 74977140. Its totient is φ = 21336000.

The previous prime is 42758033. The next prime is 42758057. The reversal of 42758036 is 63085724.

It is a happy number.

42758036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 22146436 + 20611600 = 4706^2 + 4540^2 .

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 42757987 and 42758005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42758033) 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, 8465 + ... + 12536.

It is an arithmetic number, because the mean of its divisors is an integer number (6248095).

Almost surely, 242758036 is an apocalyptic number.

It is an amenable number.

42758036 is a deficient number, since it is larger than the sum of its proper divisors (32219104).

42758036 is a wasteful number, since it uses less digits than its factorization.

42758036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21514 (or 21512 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42758036 is about 6538.9629147136. The cubic root of 42758036 is about 349.6814407574.

The spelling of 42758036 in words is "forty-two million, seven hundred fifty-eight thousand, thirty-six".

Divisors: 1 2 4 509 1018 2036 21001 42002 84004 10689509 21379018 42758036