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30503052805 = 559937711027
BaseRepresentation
bin11100011010000111…
…111010011000000101
32220201210212122002111
4130122013322120011
5444432240142210
622002442141021
72126615446051
oct343207723005
986653778074
1030503052805
1111a331a6055
125ab34b1771
132b51678894
141695196c61
15bd7d9688a
hex71a1fa605

30503052805 has 16 divisors (see below), whose sum is σ = 37231410240. Its totient is φ = 23984108032.

The previous prime is 30503052799. The next prime is 30503052817. The reversal of 30503052805 is 50825030503.

It is a cyclic number.

It is not a de Polignac number, because 30503052805 - 25 = 30503052773 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2760702 + ... + 2771728.

It is an arithmetic number, because the mean of its divisors is an integer number (2326963140).

Almost surely, 230503052805 is an apocalyptic number.

It is an amenable number.

30503052805 is a deficient number, since it is larger than the sum of its proper divisors (6728357435).

30503052805 is a wasteful number, since it uses less digits than its factorization.

30503052805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20468.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 30503052805 in words is "thirty billion, five hundred three million, fifty-two thousand, eight hundred five".

Divisors: 1 5 59 295 9377 11027 46885 55135 553243 650593 2766215 3252965 103400179 517000895 6100610561 30503052805