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42395085 = 325942113
BaseRepresentation
bin1010000110111…
…0010111001101
32221202220010100
42201232113031
541323120320
64112401313
71023231555
oct241562715
987686110
1042395085
1121a27067
1212246239
138a24a65
1458b8165
153ac6790
hex286e5cd

42395085 has 12 divisors (see below), whose sum is σ = 73484892. Its totient is φ = 22610688.

The previous prime is 42395083. The next prime is 42395117. The reversal of 42395085 is 58059324.

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 22867524 = 4419^2 + 4782^2 .

It is not a de Polignac number, because 42395085 - 21 = 42395083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42395083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471012 + ... + 471101.

It is an arithmetic number, because the mean of its divisors is an integer number (6123741).

Almost surely, 242395085 is an apocalyptic number.

42395085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42395085 is a deficient number, since it is larger than the sum of its proper divisors (31089807).

42395085 is a wasteful number, since it uses less digits than its factorization.

42395085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942124 (or 942121 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 42395085 is about 6511.1508199396. The cubic root of 42395085 is about 348.6892058827.

The spelling of 42395085 in words is "forty-two million, three hundred ninety-five thousand, eighty-five".

Divisors: 1 3 5 9 15 45 942113 2826339 4710565 8479017 14131695 42395085