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2005305430 = 25434663501
BaseRepresentation
bin111011110000110…
…1000100001010110
312011202100001220111
41313201220201112
513101324233210
6530552353234
7100456546342
oct16741504126
95152301814
102005305430
11939a40717
1247b6a581a
1325c5b417b
1415047a622
15bb0ae88a
hex77868856

2005305430 has 16 divisors (see below), whose sum is σ = 3693493584. Its totient is φ = 783468000.

The previous prime is 2005305389. The next prime is 2005305433. The reversal of 2005305430 is 345035002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005305433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331321 + ... + 2332180.

It is an arithmetic number, because the mean of its divisors is an integer number (230843349).

Almost surely, 22005305430 is an apocalyptic number.

2005305430 is a deficient number, since it is larger than the sum of its proper divisors (1688188154).

2005305430 is a wasteful number, since it uses less digits than its factorization.

2005305430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663551.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 2005305430 is about 44780.6367752849. The cubic root of 2005305430 is about 1261.0341367295.

The spelling of 2005305430 in words is "two billion, five million, three hundred five thousand, four hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 4663501 9327002 23317505 46635010 200530543 401061086 1002652715 2005305430