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8020808040408 = 2332540411315537
BaseRepresentation
bin111010010110111110101…
…1010011111111111011000
31001101210002220101101011120
41310231331122133333120
52022403103324243113
625020413000325240
71455325046305122
oct164557532377730
931353086341146
108020808040408
112612673044a49
12a965a0473820
134624888085c7
141da2cddc4212
15dd98dae5a23
hex74b7d69ffd8

8020808040408 has 32 divisors (see below), whose sum is σ = 20052114275760. Its totient is φ = 2673590123520.

The previous prime is 8020808040403. The next prime is 8020808040431. The reversal of 8020808040408 is 8040408080208.

It is a self number, because there is not a number n which added to its sum of digits gives 8020808040408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8020808040403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5439216 + ... + 6754752.

Almost surely, 28020808040408 is an apocalyptic number.

It is an amenable number.

8020808040408 is an abundant number, since it is smaller than the sum of its proper divisors (12031306235352).

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

8020808040408 is a wasteful number, since it uses less digits than its factorization.

8020808040408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569587 (or 1569583 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 42.

It can be divided in two parts, 802080 and 8040408, that added together give a palindrome (8842488).

The spelling of 8020808040408 in words is "eight trillion, twenty billion, eight hundred eight million, forty thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 254041 508082 762123 1016164 1315537 1524246 2032328 2631074 3048492 3946611 5262148 6096984 7893222 10524296 15786444 31572888 334200335017 668400670034 1002601005051 1336801340068 2005202010102 2673602680136 4010404020204 8020808040408