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42501141 = 3231714897
BaseRepresentation
bin1010001000100…
…0010000010101
32221222021121100
42202020100111
541340014031
64114540313
71024153014
oct242102025
987867540
1042501141
1121a99811
1212297699
138a61107
145904a7b
153ae7de6
hex2888415

42501141 has 12 divisors (see below), whose sum is σ = 61588332. Its totient is φ = 28242816.

The previous prime is 42501091. The next prime is 42501161. The reversal of 42501141 is 14110524.

It can be written as a sum of positive squares in 2 ways, for example, as 20738916 + 21762225 = 4554^2 + 4665^2 .

It is not a de Polignac number, because 42501141 - 27 = 42501013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42501161) 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, 4596 + ... + 10301.

It is an arithmetic number, because the mean of its divisors is an integer number (5132361).

Almost surely, 242501141 is an apocalyptic number.

It is an amenable number.

42501141 is a deficient number, since it is larger than the sum of its proper divisors (19087191).

42501141 is a wasteful number, since it uses less digits than its factorization.

42501141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15220 (or 15217 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 42501141 is about 6519.2899153205. The cubic root of 42501141 is about 348.9797253160.

Adding to 42501141 its reverse (14110524), we get a palindrome (56611665).

The spelling of 42501141 in words is "forty-two million, five hundred one thousand, one hundred forty-one".

Divisors: 1 3 9 317 951 2853 14897 44691 134073 4722349 14167047 42501141