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42131341242 = 2331045974597
BaseRepresentation
bin100111001111001110…
…010011111110111010
311000202012112220001000
4213033032103332322
51142241110404432
631204352505430
73021024330444
oct471716237672
9130665486030
1042131341242
1116960053291
1281b984b276
133c857c4a23
142079695494
151168b9057c
hex9cf393fba

42131341242 has 32 divisors (see below), whose sum is σ = 93635409600. Its totient is φ = 14042249424.

The previous prime is 42131341237. The next prime is 42131341279. The reversal of 42131341242 is 24214313124.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527488 + ... + 602084.

It is an arithmetic number, because the mean of its divisors is an integer number (2926106550).

Almost surely, 242131341242 is an apocalyptic number.

42131341242 is an abundant number, since it is smaller than the sum of its proper divisors (51504068358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42131341242 is a wasteful number, since it uses less digits than its factorization.

42131341242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85067 (or 85061 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 42131341242 its reverse (24214313124), we get a palindrome (66345654366).

The spelling of 42131341242 in words is "forty-two billion, one hundred thirty-one million, three hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 10459 20918 31377 62754 74597 94131 149194 188262 223791 282393 447582 564786 671373 1342746 2014119 4028238 780210023 1560420046 2340630069 4681260138 7021890207 14043780414 21065670621 42131341242