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42743103 = 31319371559
BaseRepresentation
bin1010001100001…
…1010100111111
32222102120111220
42203003110333
541420234403
64124044423
71026211314
oct243032477
988376456
1042743103
1122144587
1212393713
138b172a0
145968d0b
153b44953
hex28c353f

42743103 has 32 divisors (see below), whose sum is σ = 66393600. Its totient is φ = 24230016.

The previous prime is 42743101. The next prime is 42743111. The reversal of 42743103 is 30134724.

It is not a de Polignac number, because 42743103 - 21 = 42743101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42743101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26638 + ... + 28196.

It is an arithmetic number, because the mean of its divisors is an integer number (2074800).

Almost surely, 242743103 is an apocalyptic number.

42743103 is a deficient number, since it is larger than the sum of its proper divisors (23650497).

42743103 is a wasteful number, since it uses less digits than its factorization.

42743103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 42743103 is about 6537.8209672642. The cubic root of 42743103 is about 349.6407279351.

Adding to 42743103 its reverse (30134724), we get a palindrome (72877827).

The spelling of 42743103 in words is "forty-two million, seven hundred forty-three thousand, one hundred three".

Divisors: 1 3 13 19 37 39 57 111 247 481 703 741 1443 1559 2109 4677 9139 20267 27417 29621 57683 60801 88863 173049 385073 749879 1095977 1155219 2249637 3287931 14247701 42743103