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42481731418 = 279731282571
BaseRepresentation
bin100111100100000110…
…111100011101011010
311001122121212112222221
4213210012330131122
51144000310401133
631303230534254
73032510521240
oct474406743532
9131577775887
1042481731418
111701a914645
12829706738a
1340102866a9
1420b0024790
151189804a2d
hex9e41bc75a

42481731418 has 16 divisors (see below), whose sum is σ = 73576609344. Its totient is φ = 18018760320.

The previous prime is 42481731403. The next prime is 42481731421. The reversal of 42481731418 is 81413718424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15639928 + ... + 15642643.

It is an arithmetic number, because the mean of its divisors is an integer number (4598538084).

Almost surely, 242481731418 is an apocalyptic number.

42481731418 is a deficient number, since it is larger than the sum of its proper divisors (31094877926).

42481731418 is a wasteful number, since it uses less digits than its factorization.

42481731418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31282677.

The product of its digits is 172032, while the sum is 43.

The spelling of 42481731418 in words is "forty-two billion, four hundred eighty-one million, seven hundred thirty-one thousand, four hundred eighteen".

Divisors: 1 2 7 14 97 194 679 1358 31282571 62565142 218977997 437955994 3034409387 6068818774 21240865709 42481731418