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42849707 = 1771131271
BaseRepresentation
bin1010001101110…
…1010110101011
32222121222202012
42203131112223
541432142312
64130230135
71030134155
oct243352653
988558665
1042849707
112220768a
121242534b
138b53974
145995ad5
153b66322
hex28dd5ab

42849707 has 16 divisors (see below), whose sum is σ = 46531584. Its totient is φ = 39312000.

The previous prime is 42849701. The next prime is 42849721. The reversal of 42849707 is 70794824.

It is a cyclic number.

It is not a de Polignac number, because 42849707 - 28 = 42849451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42849701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157982 + ... + 158252.

It is an arithmetic number, because the mean of its divisors is an integer number (2908224).

Almost surely, 242849707 is an apocalyptic number.

42849707 is a deficient number, since it is larger than the sum of its proper divisors (3681877).

42849707 is a wasteful number, since it uses less digits than its factorization.

42849707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 42849707 is about 6545.9687594733. The cubic root of 42849707 is about 349.9311619720.

The spelling of 42849707 in words is "forty-two million, eight hundred forty-nine thousand, seven hundred seven".

Divisors: 1 17 71 131 271 1207 2227 4607 9301 19241 35501 158117 327097 603517 2520571 42849707