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120731248085 = 57193714473391
BaseRepresentation
bin111000001110000100…
…1001010010111010101
3102112121222010212021212
41300130021022113111
53434224144414320
6131244013351205
711502555451010
oct1603411122725
9375558125255
10120731248085
1147224707688
121b494798505
13b500847846
145bb44d6377
15321929b9c5
hex1c1c24a5d5

120731248085 has 64 divisors (see below), whose sum is σ = 179175751680. Its totient is φ = 76234970880.

The previous prime is 120731247983. The next prime is 120731248087. The reversal of 120731248085 is 580842137021.

It is not a de Polignac number, because 120731248085 - 218 = 120730985941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120731248087) 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 63 ways as a sum of consecutive naturals, for example, 35601740 + ... + 35605130.

It is an arithmetic number, because the mean of its divisors is an integer number (2799621120).

Almost surely, 2120731248085 is an apocalyptic number.

It is an amenable number.

120731248085 is a deficient number, since it is larger than the sum of its proper divisors (58444503595).

120731248085 is a wasteful number, since it uses less digits than its factorization.

120731248085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 120731248085 in words is "one hundred twenty billion, seven hundred thirty-one million, two hundred forty-eight thousand, eighty-five".

Divisors: 1 5 7 19 35 37 95 133 185 259 665 703 1295 1447 3391 3515 4921 7235 10129 16955 23737 24605 27493 50645 53539 64429 118685 125467 137465 192451 267695 322145 374773 451003 627335 878269 962255 1017241 1873865 2255015 2383873 4391345 4906777 5086205 7120687 11919365 16687111 24533885 34347439 35603435 83435555 93228763 171737195 181550749 466143815 652601341 907753745 1270855243 3263006705 3449464231 6354276215 17247321155 24146249617 120731248085