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42425101 = 388910909
BaseRepresentation
bin1010000111010…
…1101100001101
32221211102022001
42201311230031
541330100401
64113152301
71023415225
oct241655415
987742261
1042425101
1121a47674
121225b691
138a35614
1458c5085
153ad0601
hex2875b0d

42425101 has 4 divisors (see below), whose sum is σ = 42439900. Its totient is φ = 42410304.

The previous prime is 42425093. The next prime is 42425113. The reversal of 42425101 is 10152424.

42425101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 22184100 = 4499^2 + 4710^2 .

It is a cyclic number.

It is not a de Polignac number, because 42425101 - 23 = 42425093 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 (42425171) 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, 1566 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (10609975).

Almost surely, 242425101 is an apocalyptic number.

It is an amenable number.

42425101 is a deficient number, since it is larger than the sum of its proper divisors (14799).

42425101 is a wasteful number, since it uses less digits than its factorization.

42425101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 42425101 is about 6513.4553809787. The cubic root of 42425101 is about 348.7714778891.

Adding to 42425101 its reverse (10152424), we get a palindrome (52577525).

The spelling of 42425101 in words is "forty-two million, four hundred twenty-five thousand, one hundred one".

Divisors: 1 3889 10909 42425101