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2305642105 = 51347754711
BaseRepresentation
bin1000100101101101…
…0100111001111001
312221200110202101001
42021123110321321
514210221021410
61020441525001
7111064430434
oct21133247171
95850422331
102305642105
11a83525048
125441a3761
132a989c290
1417c2da81b
15d763833a
hex896d4e79

2305642105 has 16 divisors (see below), whose sum is σ = 3042998784. Its totient is φ = 1666399680.

The previous prime is 2305642037. The next prime is 2305642111. The reversal of 2305642105 is 5012465032.

It is not a de Polignac number, because 2305642105 - 29 = 2305641593 is a prime.

It is a Duffinian 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, 374301 + ... + 380410.

It is an arithmetic number, because the mean of its divisors is an integer number (190187424).

Almost surely, 22305642105 is an apocalyptic number.

It is an amenable number.

2305642105 is a deficient number, since it is larger than the sum of its proper divisors (737356679).

2305642105 is a wasteful number, since it uses less digits than its factorization.

2305642105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754776.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2305642105 is about 48017.1022136905. The cubic root of 2305642105 is about 1321.0846046277.

The spelling of 2305642105 in words is "two billion, three hundred five million, six hundred forty-two thousand, one hundred five".

Divisors: 1 5 13 47 65 235 611 3055 754711 3773555 9811243 35471417 49056215 177357085 461128421 2305642105