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42307807 = 732512309
BaseRepresentation
bin1010000101100…
…1000011011111
32221121110101211
42201121003133
541312322212
64110445251
71022416243
oct241310337
987543354
1042307807
1121977533
1212203827
1389c4109
145894423
153aaa9a7
hex28590df

42307807 has 8 divisors (see below), whose sum is σ = 43076880. Its totient is φ = 41544000.

The previous prime is 42307799. The next prime is 42307817. The reversal of 42307807 is 70870324.

42307807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42307807 - 23 = 42307799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42307817) 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 7 ways as a sum of consecutive naturals, for example, 17169 + ... + 19477.

It is an arithmetic number, because the mean of its divisors is an integer number (5384610).

Almost surely, 242307807 is an apocalyptic number.

42307807 is a deficient number, since it is larger than the sum of its proper divisors (769073).

42307807 is a wasteful number, since it uses less digits than its factorization.

42307807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 42307807 is about 6504.4451723418. The cubic root of 42307807 is about 348.4497614258.

The spelling of 42307807 in words is "forty-two million, three hundred seven thousand, eight hundred seven".

Divisors: 1 73 251 2309 18323 168557 579559 42307807