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42879306740 = 2254349859659
BaseRepresentation
bin100111111011110011…
…100100101111110100
311002200022222110210212
4213323303210233310
51200304100303430
631410512204552
73045406044044
oct477363445764
9132608873725
1042879306740
1117204283896
128388239758
13407475946a
14210ab57724
1511ae689b95
hex9fbce4bf4

42879306740 has 24 divisors (see below), whose sum is σ = 92140651680. Its totient is φ = 16752845088.

The previous prime is 42879306721. The next prime is 42879306779. The reversal of 42879306740 is 4760397824.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24928970 + ... + 24930689.

It is an arithmetic number, because the mean of its divisors is an integer number (3839193820).

Almost surely, 242879306740 is an apocalyptic number.

It is an amenable number.

42879306740 is an abundant number, since it is smaller than the sum of its proper divisors (49261344940).

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

42879306740 is a wasteful number, since it uses less digits than its factorization.

42879306740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49859711 (or 49859709 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 42879306740 in words is "forty-two billion, eight hundred seventy-nine million, three hundred six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 49859659 99719318 199438636 249298295 498596590 997193180 2143965337 4287930674 8575861348 10719826685 21439653370 42879306740