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42490073179 = 192333995819
BaseRepresentation
bin100111100100100110…
…110001000001011011
311001200012120100202001
4213210212301001123
51144004424320204
631304125421431
73032641443241
oct474446610133
9131605510661
1042490073179
11170245a1964
128299a0a877
134011c17548
1420b1196791
15118a4014a4
hex9e49b105b

42490073179 has 8 divisors (see below), whose sum is σ = 44728776000. Its totient is φ = 40251608712.

The previous prime is 42490073167. The next prime is 42490073183. The reversal of 42490073179 is 97137009424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42490073179 - 27 = 42490073051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42490073189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395532 + ... + 491350.

It is an arithmetic number, because the mean of its divisors is an integer number (5591097000).

Almost surely, 242490073179 is an apocalyptic number.

42490073179 is a deficient number, since it is larger than the sum of its proper divisors (2238702821).

42490073179 is a wasteful number, since it uses less digits than its factorization.

42490073179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119177.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 42490073179 in words is "forty-two billion, four hundred ninety million, seventy-three thousand, one hundred seventy-nine".

Divisors: 1 19 23339 95819 443441 1820561 2236319641 42490073179