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8138826068 = 225372752807
BaseRepresentation
bin1111001010001110…
…01010000101010100
3210000012122012110112
413211013022011110
5113132014413233
63423335142152
7405454610612
oct74507120524
923005565415
108138826068
1134a717853a
1216b1814958
139c922c019
14572cc46b2
153297be048
hex1e51ca154

8138826068 has 24 divisors (see below), whose sum is σ = 14531916672. Its totient is φ = 3987064224.

The previous prime is 8138826049. The next prime is 8138826077. The reversal of 8138826068 is 8606288318.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127721 + ... + 180527.

It is an arithmetic number, because the mean of its divisors is an integer number (605496528).

Almost surely, 28138826068 is an apocalyptic number.

It is an amenable number.

8138826068 is a deficient number, since it is larger than the sum of its proper divisors (6393090604).

8138826068 is a wasteful number, since it uses less digits than its factorization.

8138826068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53591 (or 53589 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 8138826068 is about 90215.4425140175. The cubic root of 8138826068 is about 2011.5025577583.

The spelling of 8138826068 in words is "eight billion, one hundred thirty-eight million, eight hundred twenty-six thousand, sixty-eight".

Divisors: 1 2 4 53 106 212 727 1454 2908 38531 52807 77062 105614 154124 211228 2798771 5597542 11195084 38390689 76781378 153562756 2034706517 4069413034 8138826068