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118408185049 = 71165314991571
BaseRepresentation
bin110111001000110101…
…1011000010011011001
3102022122001220000220011
41232101223120103121
53414444443410144
6130221310201521
711361156652330
oct1562153302331
9368561800804
10118408185049
1146242373a80
121ab467b32a1
13b22048902b
145a33b82d17
153130371a34
hex1b91ad84d9

118408185049 has 32 divisors (see below), whose sum is σ = 148044672000. Its totient is φ = 92004763200.

The previous prime is 118408185013. The next prime is 118408185061. The reversal of 118408185049 is 940581804811.

It is not a de Polignac number, because 118408185049 - 213 = 118408176857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118408184993 and 118408185011.

It is not an unprimeable number, because it can be changed into a prime (118408185349) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 75370434 + ... + 75372004.

It is an arithmetic number, because the mean of its divisors is an integer number (4626396000).

Almost surely, 2118408185049 is an apocalyptic number.

It is an amenable number.

118408185049 is a deficient number, since it is larger than the sum of its proper divisors (29636486951).

118408185049 is a wasteful number, since it uses less digits than its factorization.

118408185049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3741.

The product of its (nonzero) digits is 368640, while the sum is 49.

The spelling of 118408185049 in words is "one hundred eighteen billion, four hundred eight million, one hundred eighty-five thousand, forty-nine".

Divisors: 1 7 11 77 653 1499 1571 4571 7183 10493 10997 16489 17281 50281 115423 120967 978847 1025863 2354929 6851929 7181041 10767317 11284493 16484503 25904219 75371219 78991451 181329533 1537768637 10764380459 16915455007 118408185049