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80426954568 = 2337147198917
BaseRepresentation
bin100101011100111010…
…0011110111101001000
321200121002111121120010
41022321310132331020
52304203300021233
6100540404431520
75545024556052
oct1127164367510
9250532447503
1080426954568
1131121a123a4
12137069a85a0
13777972315c
143c6d7588d2
15215ac08b63
hex12b9d1ef48

80426954568 has 32 divisors (see below), whose sum is σ = 203899325760. Its totient is φ = 26431392960.

The previous prime is 80426954563. The next prime is 80426954579. The reversal of 80426954568 is 86545962408.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80426954561) 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, 23597755 + ... + 23601162.

It is an arithmetic number, because the mean of its divisors is an integer number (6371853930).

Almost surely, 280426954568 is an apocalyptic number.

It is an amenable number.

80426954568 is an abundant number, since it is smaller than the sum of its proper divisors (123472371192).

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

80426954568 is a wasteful number, since it uses less digits than its factorization.

80426954568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47198997 (or 47198993 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 57.

The spelling of 80426954568 in words is "eighty billion, four hundred twenty-six million, nine hundred fifty-four thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 71 142 213 284 426 568 852 1704 47198917 94397834 141596751 188795668 283193502 377591336 566387004 1132774008 3351123107 6702246214 10053369321 13404492428 20106738642 26808984856 40213477284 80426954568