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42740350 = 252854807
BaseRepresentation
bin1010001100001…
…0101001111110
32222102102201221
42203002221332
541420142400
64124023554
71026200302
oct243025176
988372657
1042740350
1122142504
1212391bba
138b15c63
145967d02
153b43c1a
hex28c2a7e

42740350 has 12 divisors (see below), whose sum is σ = 79497144. Its totient is φ = 17096120.

The previous prime is 42740339. The next prime is 42740353. The reversal of 42740350 is 5304724.

42740350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42740353) 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 5 ways as a sum of consecutive naturals, for example, 427354 + ... + 427453.

It is an arithmetic number, because the mean of its divisors is an integer number (6624762).

Almost surely, 242740350 is an apocalyptic number.

42740350 is a deficient number, since it is larger than the sum of its proper divisors (36756794).

42740350 is a wasteful number, since it uses less digits than its factorization.

42740350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854819 (or 854814 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42740350 is about 6537.6104197176. The cubic root of 42740350 is about 349.6332212145.

The spelling of 42740350 in words is "forty-two million, seven hundred forty thousand, three hundred fifty".

Divisors: 1 2 5 10 25 50 854807 1709614 4274035 8548070 21370175 42740350