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11830780068 = 2235477180007
BaseRepresentation
bin10110000010010101…
…10110000010100100
31010112111200220020120
423001022312002210
5143212134430233
65233542401540
7566114654112
oct130112660244
933474626216
1011830780068
115021192198
1223621302b0
1311670965a3
1480336cab2
154939964b3
hex2c12b60a4

11830780068 has 24 divisors (see below), whose sum is σ = 27610347072. Its totient is φ = 3942851424.

The previous prime is 11830780033. The next prime is 11830780079. The reversal of 11830780068 is 86008703811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24280 + ... + 155727.

It is an arithmetic number, because the mean of its divisors is an integer number (1150431128).

Almost surely, 211830780068 is an apocalyptic number.

It is an amenable number.

11830780068 is an abundant number, since it is smaller than the sum of its proper divisors (15779567004).

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

11830780068 is a wasteful number, since it uses less digits than its factorization.

11830780068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185491 (or 185489 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 11830780068 in words is "eleven billion, eight hundred thirty million, seven hundred eighty thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 5477 10954 16431 21908 32862 65724 180007 360014 540021 720028 1080042 2160084 985898339 1971796678 2957695017 3943593356 5915390034 11830780068