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42479038240 = 255265493989
BaseRepresentation
bin100111100011111100…
…101010111100100000
311001122102210201122121
4213203330222330200
51143444113210430
631303053114024
73032445603352
oct474374527440
9131572721577
1042479038240
1117019345181
128296188914
13400c8528b2
1420ad9230d2
151189471a7a
hex9e3f2af20

42479038240 has 24 divisors (see below), whose sum is σ = 100356728220. Its totient is φ = 16991615232.

The previous prime is 42479038219. The next prime is 42479038271. The reversal of 42479038240 is 4283097424.

It can be written as a sum of positive squares in 2 ways, for example, as 42269715216 + 209323024 = 205596^2 + 14468^2 .

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 3 ways as a sum of consecutive naturals, for example, 132746835 + ... + 132747154.

Almost surely, 242479038240 is an apocalyptic number.

42479038240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42479038240 is an abundant number, since it is smaller than the sum of its proper divisors (57877689980).

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

42479038240 is a wasteful number, since it uses less digits than its factorization.

42479038240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265494004 (or 265493996 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 42479038240 in words is "forty-two billion, four hundred seventy-nine million, thirty-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 265493989 530987978 1061975956 1327469945 2123951912 2654939890 4247903824 5309879780 8495807648 10619759560 21239519120 42479038240