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11913108825 = 352773205487
BaseRepresentation
bin10110001100001001…
…11001110101011001
31010202020121122001210
423012010321311121
5143344223440300
65250043133333
7601134516462
oct130604716531
933666548053
1011913108825
115063703a92
122385814249
13117b160927
1481027dd69
1549ad0a050
hex2c6139d59

11913108825 has 24 divisors (see below), whose sum is σ = 19721916288. Its totient is φ = 6345407680.

The previous prime is 11913108811. The next prime is 11913108833. The reversal of 11913108825 is 52880131911.

11913108825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11913108825 - 28 = 11913108569 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 44769 + ... + 160718.

It is an arithmetic number, because the mean of its divisors is an integer number (821746512).

Almost surely, 211913108825 is an apocalyptic number.

11913108825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11913108825 is a deficient number, since it is larger than the sum of its proper divisors (7808807463).

11913108825 is a wasteful number, since it uses less digits than its factorization.

11913108825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206273 (or 206268 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 39.

The spelling of 11913108825 in words is "eleven billion, nine hundred thirteen million, one hundred eight thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 773 2319 3865 11595 19325 57975 205487 616461 1027435 3082305 5137175 15411525 158841451 476524353 794207255 2382621765 3971036275 11913108825