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11875981768 = 2371914337789
BaseRepresentation
bin10110000111101110…
…10001100111001000
31010122122202101022121
423003313101213020
5143310222404033
65242235301024
7600204115360
oct130367214710
933578671277
1011875981768
115044755972
1223752aa774
131173561961
148093779a0
1549792462d
hex2c3dd19c8

11875981768 has 64 divisors (see below), whose sum is σ = 26810064000. Its totient is φ = 4817843712.

The previous prime is 11875981751. The next prime is 11875981823. The reversal of 11875981768 is 86718957811.

11875981768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

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 15 ways as a sum of consecutive naturals, for example, 1520818 + ... + 1528606.

It is an arithmetic number, because the mean of its divisors is an integer number (418907250).

Almost surely, 211875981768 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 11875981768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13405032000).

11875981768 is an abundant number, since it is smaller than the sum of its proper divisors (14934082232).

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

11875981768 is a wasteful number, since it uses less digits than its factorization.

11875981768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254 (or 9250 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 61.

The spelling of 11875981768 in words is "eleven billion, eight hundred seventy-five million, nine hundred eighty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 1433 2866 5732 7789 10031 11464 15578 20062 27227 31156 40124 54454 54523 62312 80248 108908 109046 147991 190589 217816 218092 295982 381178 436184 591964 762356 1035937 1183928 1524712 2071874 4143748 8287496 11161637 22323274 44646548 78131459 89293096 156262918 212071103 312525836 424142206 625051672 848284412 1484497721 1696568824 2968995442 5937990884 11875981768