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42879979282 = 272721960611
BaseRepresentation
bin100111111011110110…
…001000111100010010
311002200101020122100211
4213323312020330102
51200304233314112
631410534434334
73045414544600
oct477366107422
9132611218324
1042879979282
11172046a3108
1283885029aa
13407493360a
14210ac90870
1511ae76e0a7
hex9fbd88f12

42879979282 has 24 divisors (see below), whose sum is σ = 74832787440. Its totient is φ = 18374285160.

The previous prime is 42879979267. The next prime is 42879979313. The reversal of 42879979282 is 28297997824.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 677157 + ... + 737767.

It is an arithmetic number, because the mean of its divisors is an integer number (3118032810).

Almost surely, 242879979282 is an apocalyptic number.

42879979282 is a deficient number, since it is larger than the sum of its proper divisors (31952808158).

42879979282 is a wasteful number, since it uses less digits than its factorization.

42879979282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67846 (or 67839 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 67.

The spelling of 42879979282 in words is "forty-two billion, eight hundred seventy-nine million, nine hundred seventy-nine thousand, two hundred eighty-two".

Divisors: 1 2 7 14 49 98 7219 14438 50533 60611 101066 121222 353731 424277 707462 848554 2969939 5939878 437550809 875101618 3062855663 6125711326 21439989641 42879979282