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30409201966 = 211131911349523
BaseRepresentation
bin11100010100100001…
…111001100100101110
32220111021021111221111
4130110201321210232
5444234223430331
621545250422234
72124365644333
oct342441714456
986437244844
1030409201966
1111995224580
125a87b9197a
132b380a8c40
14168692698a
15bcea08db1
hex71487992e

30409201966 has 64 divisors (see below), whose sum is σ = 56909018880. Its totient is φ = 11980362240.

The previous prime is 30409201957. The next prime is 30409201967. The reversal of 30409201966 is 66910290403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30409201967) 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 31 ways as a sum of consecutive naturals, for example, 589281 + ... + 638803.

It is an arithmetic number, because the mean of its divisors is an integer number (889203420).

Almost surely, 230409201966 is an apocalyptic number.

30409201966 is a deficient number, since it is larger than the sum of its proper divisors (26499816914).

30409201966 is a wasteful number, since it uses less digits than its factorization.

30409201966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49681.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 30409201966 in words is "thirty billion, four hundred nine million, two hundred one thousand, nine hundred sixty-six".

Divisors: 1 2 11 13 19 22 26 38 113 143 209 226 247 286 418 494 1243 1469 2147 2486 2717 2938 4294 5434 16159 23617 27911 32318 47234 49523 55822 99046 307021 544753 614042 643799 940937 1089506 1287598 1881874 5596099 7081789 10350307 11192198 12232181 14163578 20700614 24464362 61557089 72749287 106325881 123114178 134553991 145498574 212651762 269107982 800242157 1169584691 1382236453 1600484314 2339169382 2764472906 15204600983 30409201966