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80247857388 = 22348611375709
BaseRepresentation
bin100101010111100100…
…1010010000011101100
321200010121111112102020
41022233021102003230
52303321422414023
6100510530030140
75540421350616
oct1125711220354
9250117445366
1080247857388
113103a906aa6
1213676a18350
13774b5a71aa
143c53a57db6
15214a12cde3
hex12af2520ec

80247857388 has 24 divisors (see below), whose sum is σ = 187283656560. Its totient is φ = 26743763520.

The previous prime is 80247857369. The next prime is 80247857399. The reversal of 80247857388 is 88375874208.

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 7 ways as a sum of consecutive naturals, for example, 629523 + ... + 746186.

It is an arithmetic number, because the mean of its divisors is an integer number (7803485690).

Almost surely, 280247857388 is an apocalyptic number.

It is an amenable number.

80247857388 is an abundant number, since it is smaller than the sum of its proper divisors (107035799172).

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

80247857388 is a wasteful number, since it uses less digits than its factorization.

80247857388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380577 (or 1380575 counting only the distinct ones).

The product of its (nonzero) digits is 24084480, while the sum is 60.

The spelling of 80247857388 in words is "eighty billion, two hundred forty-seven million, eight hundred fifty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 4861 9722 14583 19444 29166 58332 1375709 2751418 4127127 5502836 8254254 16508508 6687321449 13374642898 20061964347 26749285796 40123928694 80247857388