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305130141242 = 21931259023889
BaseRepresentation
bin1000111000010110010…
…11000111011000111010
31002011121001012012112022
410130023023013120322
514444401304004432
6352101433514442
731021260256343
oct4341313073072
91064531165468
10305130141242
11108450012353
124b177572a22
1322a09925344
1410aa85dd0ca
157e0cc70b12
hex470b2c763a

305130141242 has 16 divisors (see below), whose sum is σ = 497325868800. Its totient is φ = 139872899520.

The previous prime is 305130141193. The next prime is 305130141287. The reversal of 305130141242 is 242141031503.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 129510767 + ... + 129513122.

It is an arithmetic number, because the mean of its divisors is an integer number (31082866800).

Almost surely, 2305130141242 is an apocalyptic number.

305130141242 is a deficient number, since it is larger than the sum of its proper divisors (192195727558).

305130141242 is a wasteful number, since it uses less digits than its factorization.

305130141242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259023941.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 305130141242 its reverse (242141031503), we get a palindrome (547271172745).

The spelling of 305130141242 in words is "three hundred five billion, one hundred thirty million, one hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 19 31 38 62 589 1178 259023889 518047778 4921453891 8029740559 9842907782 16059481118 152565070621 305130141242