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42028748 = 2210507187
BaseRepresentation
bin1010000001010…
…0111011001100
32221002021121022
42200110323030
541224404443
64100453312
71020144536
oct240247314
987067538
1042028748
11217a6903
12120aa238
1389270a8
145820856
153a52e68
hex2814ecc

42028748 has 6 divisors (see below), whose sum is σ = 73550316. Its totient is φ = 21014372.

The previous prime is 42028747. The next prime is 42028757. The reversal of 42028748 is 84782024.

It is not an unprimeable number, because it can be changed into a prime (42028747) 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 as a sum of consecutive naturals, namely, 5253590 + ... + 5253597.

It is an arithmetic number, because the mean of its divisors is an integer number (12258386).

Almost surely, 242028748 is an apocalyptic number.

It is an amenable number.

42028748 is a deficient number, since it is larger than the sum of its proper divisors (31521568).

42028748 is a wasteful number, since it uses less digits than its factorization.

42028748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10507191 (or 10507189 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 42028748 is about 6482.9582753555. The cubic root of 42028748 is about 347.6819549831.

The spelling of 42028748 in words is "forty-two million, twenty-eight thousand, seven hundred forty-eight".

Divisors: 1 2 4 10507187 21014374 42028748