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13809320930 = 253787742557
BaseRepresentation
bin11001101110001100…
…11000001111100010
31022122101200012001202
430313012120033202
5211240141232210
610202141401202
7666131201606
oct146706301742
938571605052
1013809320930
115947002229
122814869202
1313c0c69322
1495003d506
1555c51a9a5
hex3371983e2

13809320930 has 32 divisors (see below), whose sum is σ = 25558292016. Its totient is φ = 5368184064.

The previous prime is 13809320887. The next prime is 13809320939. The reversal of 13809320930 is 3902390831.

13809320930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 13669584889 + 139736041 = 116917^2 + 11821^2 .

It is not an unprimeable number, because it can be changed into a prime (13809320939) by changing a digit.

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, 303212 + ... + 345768.

Almost surely, 213809320930 is an apocalyptic number.

13809320930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13809320930 is a deficient number, since it is larger than the sum of its proper divisors (11748971086).

13809320930 is a wasteful number, since it uses less digits than its factorization.

13809320930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43478.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 13809320930 in words is "thirteen billion, eight hundred nine million, three hundred twenty thousand, nine hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 877 1754 4385 8770 32449 42557 64898 85114 162245 212785 324490 425570 1574609 3149218 7873045 15746090 37322489 74644978 186612445 373224890 1380932093 2761864186 6904660465 13809320930