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42857052 = 2237510203
BaseRepresentation
bin1010001101111…
…1001001011100
32222122100211020
42203133021130
541432411202
64130324140
71030164450
oct243371134
988570736
1042857052
1122212157
1212429650
138b57104
145998660
153b685bc
hex28df25c

42857052 has 24 divisors (see below), whose sum is σ = 114285696. Its totient is φ = 12244848.

The previous prime is 42857047. The next prime is 42857053. The reversal of 42857052 is 25075824.

It is a super-2 number, since 2×428570522 = 3673453812261408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42857053) 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, 255018 + ... + 255185.

It is an arithmetic number, because the mean of its divisors is an integer number (4761904).

Almost surely, 242857052 is an apocalyptic number.

42857052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42857052 is an abundant number, since it is smaller than the sum of its proper divisors (71428644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42857052 is a wasteful number, since it uses less digits than its factorization.

42857052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510217 (or 510215 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 42857052 is about 6546.5297677472. The cubic root of 42857052 is about 349.9511550884.

The spelling of 42857052 in words is "forty-two million, eight hundred fifty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 510203 1020406 1530609 2040812 3061218 3571421 6122436 7142842 10714263 14285684 21428526 42857052