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42102443344 = 2413285770849
BaseRepresentation
bin100111001101100000…
…000100110101010000
311000200012011201120111
4213031200010311100
51142211211141334
631201441251104
73020223602143
oct471540046520
9130605151514
1042102443344
1116945805925
1281b0033a94
133c7c817590
1420758d205a
151166383064
hex9cd804d50

42102443344 has 40 divisors (see below), whose sum is σ = 87880356200. Its totient is φ = 19424821248.

The previous prime is 42102443291. The next prime is 42102443347. The reversal of 42102443344 is 44334420124.

It can be written as a sum of positive squares in 4 ways, for example, as 8397889600 + 33704553744 = 91640^2 + 183588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102443347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558832 + ... + 629680.

It is an arithmetic number, because the mean of its divisors is an integer number (2197008905).

Almost surely, 242102443344 is an apocalyptic number.

It is an amenable number.

42102443344 is an abundant number, since it is smaller than the sum of its proper divisors (45777912856).

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

42102443344 is a wasteful number, since it uses less digits than its factorization.

42102443344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73727 (or 73721 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42102443344 its reverse (44334420124), we get a palindrome (86436863468).

The spelling of 42102443344 in words is "forty-two billion, one hundred two million, four hundred forty-three thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 16 26 52 104 208 2857 5714 11428 22856 37141 45712 70849 74282 141698 148564 283396 297128 566792 594256 921037 1133584 1842074 3684148 7368296 14736592 202415593 404831186 809662372 1619324744 2631402709 3238649488 5262805418 10525610836 21051221672 42102443344