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80832447672 = 23331108645763
BaseRepresentation
bin100101101000111111…
…1010100010010111000
321201122100111210112020
41023101333110102320
52311021101311142
6101044531514440
75561050316514
oct1132177242270
9251570453466
1080832447672
113130a89a369
12137ba758a20
137812738ac2
143cab54d144
152181604cec
hex12d1fd44b8

80832447672 has 32 divisors (see below), whose sum is σ = 208599866880. Its totient is φ = 26074982880.

The previous prime is 80832447653. The next prime is 80832447679. The reversal of 80832447672 is 27674423808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80832447679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54322138 + ... + 54323625.

It is an arithmetic number, because the mean of its divisors is an integer number (6518745840).

Almost surely, 280832447672 is an apocalyptic number.

It is an amenable number.

80832447672 is an abundant number, since it is smaller than the sum of its proper divisors (127767419208).

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

80832447672 is a wasteful number, since it uses less digits than its factorization.

80832447672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108645803 (or 108645799 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 80832447672 in words is "eighty billion, eight hundred thirty-two million, four hundred forty-seven thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 108645763 217291526 325937289 434583052 651874578 869166104 1303749156 2607498312 3368018653 6736037306 10104055959 13472074612 20208111918 26944149224 40416223836 80832447672