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10311279738 = 238320705381
BaseRepresentation
bin10011001101001100…
…11010010001111010
3222121121111021122120
421212212122101322
5132104141422423
64423102302110
7513344301024
oct114646322172
928547437576
1010311279738
1144114a30a1
121bb9287936
13c84337476
146db631014
15405398ee3
hex26699a47a

10311279738 has 16 divisors (see below), whose sum is σ = 20871025056. Its totient is φ = 3395682320.

The previous prime is 10311279703. The next prime is 10311279751. The reversal of 10311279738 is 83797211301.

10311279738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 10311279738.

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 7 ways as a sum of consecutive naturals, for example, 10352193 + ... + 10353188.

It is an arithmetic number, because the mean of its divisors is an integer number (1304439066).

Almost surely, 210311279738 is an apocalyptic number.

10311279738 is an abundant number, since it is smaller than the sum of its proper divisors (10559745318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10311279738 is a wasteful number, since it uses less digits than its factorization.

10311279738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20705469.

The product of its (nonzero) digits is 63504, while the sum is 42.

The spelling of 10311279738 in words is "ten billion, three hundred eleven million, two hundred seventy-nine thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 83 166 249 498 20705381 41410762 62116143 124232286 1718546623 3437093246 5155639869 10311279738