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42838027 = 1913011733
BaseRepresentation
bin1010001101101…
…0100000001011
32222121101201121
42203122200023
541431304102
64130100111
71030055131
oct243324013
988541647
1042838027
11221a9931
121241a637
138b4b55b
145991751
153b62b37
hex28da80b

42838027 has 8 divisors (see below), whose sum is σ = 45153360. Its totient is φ = 40528800.

The previous prime is 42837997. The next prime is 42838031. The reversal of 42838027 is 72083824.

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 42838027 - 211 = 42835979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42837983 and 42838001.

It is not an unprimeable number, because it can be changed into a prime (42838057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23853 + ... + 25585.

It is an arithmetic number, because the mean of its divisors is an integer number (5644170).

Almost surely, 242838027 is an apocalyptic number.

42838027 is a deficient number, since it is larger than the sum of its proper divisors (2315333).

42838027 is a wasteful number, since it uses less digits than its factorization.

42838027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 42838027 is about 6545.0765465348. The cubic root of 42838027 is about 349.8993642642.

The spelling of 42838027 in words is "forty-two million, eight hundred thirty-eight thousand, twenty-seven".

Divisors: 1 19 1301 1733 24719 32927 2254633 42838027