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30055525305 = 3513211856223
BaseRepresentation
bin11011111111011100…
…101110101110111001
32212120121202212202220
4123333130232232321
5443023203302210
621450214114253
72112542515131
oct337734565671
985517685686
1030055525305
1111823619013
1259a964b989
132aaca36400
14165197dac1
15bad945c70
hex6ff72ebb9

30055525305 has 24 divisors (see below), whose sum is σ = 52072535808. Its totient is φ = 14796565056.

The previous prime is 30055525303. The next prime is 30055525349. The reversal of 30055525305 is 50352555003.

It is not a de Polignac number, because 30055525305 - 21 = 30055525303 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30055525303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5925577 + ... + 5930646.

It is an arithmetic number, because the mean of its divisors is an integer number (2169688992).

Almost surely, 230055525305 is an apocalyptic number.

It is an amenable number.

30055525305 is a deficient number, since it is larger than the sum of its proper divisors (22017010503).

30055525305 is a wasteful number, since it uses less digits than its factorization.

30055525305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856257 (or 11856244 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 33.

The spelling of 30055525305 in words is "thirty billion, fifty-five million, five hundred twenty-five thousand, three hundred five".

Divisors: 1 3 5 13 15 39 65 169 195 507 845 2535 11856223 35568669 59281115 154130899 177843345 462392697 770654495 2003701687 2311963485 6011105061 10018508435 30055525305