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42395087 = 718133461
BaseRepresentation
bin1010000110111…
…0010111001111
32221202220010102
42201232113033
541323120322
64112401315
71023231560
oct241562717
987686112
1042395087
1121a27069
121224623b
138a24a67
1458b8167
153ac6792
hex286e5cf

42395087 has 8 divisors (see below), whose sum is σ = 48720672. Its totient is φ = 36136800.

The previous prime is 42395083. The next prime is 42395117. The reversal of 42395087 is 78059324.

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

It is not a de Polignac number, because 42395087 - 22 = 42395083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42395087.

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 7 ways as a sum of consecutive naturals, for example, 15464 + ... + 17997.

It is an arithmetic number, because the mean of its divisors is an integer number (6090084).

Almost surely, 242395087 is an apocalyptic number.

42395087 is a deficient number, since it is larger than the sum of its proper divisors (6325585).

42395087 is a wasteful number, since it uses less digits than its factorization.

42395087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33649.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 42395087 is about 6511.1509735223. The cubic root of 42395087 is about 348.6892113659.

The spelling of 42395087 in words is "forty-two million, three hundred ninety-five thousand, eighty-seven".

Divisors: 1 7 181 1267 33461 234227 6056441 42395087