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11768711808 = 273722392617
BaseRepresentation
bin10101111010111100…
…00100101010000000
31010101011220111121010
422331132010222000
5143100242234213
65223444200520
7564432254100
oct127536045200
933334814533
1011768711808
114a9a149407
122345399140
1311572740c9
147d9013200
1548d2d5ac3
hex2bd784a80

11768711808 has 192 divisors, whose sum is σ = 36530524800. Its totient is φ = 3347140608.

The previous prime is 11768711743. The next prime is 11768711849. The reversal of 11768711808 is 80811786711.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4495716 + ... + 4498332.

It is an arithmetic number, because the mean of its divisors is an integer number (190263150).

Almost surely, 211768711808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11768711808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18265262400).

11768711808 is an abundant number, since it is smaller than the sum of its proper divisors (24761812992).

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

11768711808 is a wasteful number, since it uses less digits than its factorization.

11768711808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 48.

The spelling of 11768711808 in words is "eleven billion, seven hundred sixty-eight million, seven hundred eleven thousand, eight hundred eight".