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42132443 = 172197673
BaseRepresentation
bin1010000010111…
…0001111011011
32221021112211212
42200232033123
541241214233
64103013335
71021056053
oct240561733
987245755
1042132443
1121867801
121213a24b
138962352
14584a563
153a73a48
hex282e3db

42132443 has 12 divisors (see below), whose sum is σ = 47118360. Its totient is φ = 37562112.

The previous prime is 42132439. The next prime is 42132449. The reversal of 42132443 is 34423124.

It is not a de Polignac number, because 42132443 - 22 = 42132439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42132449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (3926530).

Almost surely, 242132443 is an apocalyptic number.

42132443 is a deficient number, since it is larger than the sum of its proper divisors (4985917).

42132443 is a wasteful number, since it uses less digits than its factorization.

42132443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726 (or 7709 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 42132443 is about 6490.9508548440. The cubic root of 42132443 is about 347.9676583984.

Adding to 42132443 its reverse (34423124), we get a palindrome (76555567).

The spelling of 42132443 in words is "forty-two million, one hundred thirty-two thousand, four hundred forty-three".

Divisors: 1 17 19 289 323 5491 7673 130441 145787 2217497 2478379 42132443