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805043838768 = 243131290134357
BaseRepresentation
bin10111011011100000101…
…10100001111100110000
32211221221220000022000220
423231300112201330300
5101142212210320033
61413455415213040
7112106510503221
oct13556026417460
92757856008026
10805043838768
11290465294494
12110033677180
135abb8c17160
142ad70199248
1515e1b007bb3
hexbb705a1f30

805043838768 has 40 divisors (see below), whose sum is σ = 2239673245488. Its totient is φ = 247705796352.

The previous prime is 805043838751. The next prime is 805043838769. The reversal of 805043838768 is 867838340508.

805043838768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (805043838769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645066555 + ... + 645067802.

Almost surely, 2805043838768 is an apocalyptic number.

It is an amenable number.

805043838768 is an abundant number, since it is smaller than the sum of its proper divisors (1434629406720).

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

805043838768 is a wasteful number, since it uses less digits than its factorization.

805043838768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290134381 (or 1290134375 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 805043838768 in words is "eight hundred five billion, forty-three million, eight hundred thirty-eight thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 1290134357 2580268714 3870403071 5160537428 7740806142 10321074856 15481612284 16771746641 20642149712 30963224568 33543493282 50315239923 61926449136 67086986564 100630479846 134173973128 201260959692 268347946256 402521919384 805043838768