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305030030525 = 52115861189251
BaseRepresentation
bin1000111000001010011…
…01001110010010111101
31002011100001211001102222
410130011031032102331
514444200141434100
6352043500055125
731015633323353
oct4340515162275
91064301731388
10305030030525
111083a9555720
124b149b344a5
13229c1c7332c
1410a991bd7d3
157e04098485
hex470534e4bd

305030030525 has 24 divisors (see below), whose sum is σ = 412695023328. Its totient is φ = 221801000000.

The previous prime is 305030030509. The next prime is 305030030579. The reversal of 305030030525 is 525030030503.

It is not a de Polignac number, because 305030030525 - 24 = 305030030509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305030030494 and 305030030503.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 1517150 + ... + 1706400.

It is an arithmetic number, because the mean of its divisors is an integer number (17195625972).

Almost surely, 2305030030525 is an apocalyptic number.

It is an amenable number.

305030030525 is a deficient number, since it is larger than the sum of its proper divisors (107664992803).

305030030525 is a wasteful number, since it uses less digits than its factorization.

305030030525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195133 (or 195128 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 26.

The spelling of 305030030525 in words is "three hundred five billion, thirty million, thirty thousand, five hundred twenty-five".

Divisors: 1 5 11 25 55 275 5861 29305 64471 146525 189251 322355 946255 1611775 2081761 4731275 10408805 52044025 1109200111 5546000555 12201201221 27730002775 61006006105 305030030525