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42057295 = 571201637
BaseRepresentation
bin1010000001101…
…1111001001111
32221010201202121
42200123321033
541231313140
64101233411
71020324010
oct240337117
987121677
1042057295
11218162a5
1212102867
138937097
14582b007
153a5b64a
hex281be4f

42057295 has 8 divisors (see below), whose sum is σ = 57678624. Its totient is φ = 28839264.

The previous prime is 42057293. The next prime is 42057299. The reversal of 42057295 is 59275024.

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 42057295 - 21 = 42057293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42057295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42057293) 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, 600784 + ... + 600853.

It is an arithmetic number, because the mean of its divisors is an integer number (7209828).

Almost surely, 242057295 is an apocalyptic number.

42057295 is a deficient number, since it is larger than the sum of its proper divisors (15621329).

42057295 is a wasteful number, since it uses less digits than its factorization.

42057295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201649.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 42057295 is about 6485.1595971109. The cubic root of 42057295 is about 347.7606553245.

The spelling of 42057295 in words is "forty-two million, fifty-seven thousand, two hundred ninety-five".

Divisors: 1 5 7 35 1201637 6008185 8411459 42057295