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80825375580 = 22353159799323
BaseRepresentation
bin100101101000110010…
…0010101101101011100
321201121212012111102220
41023101210111231130
52311012244004310
6101044120145340
75560633233255
oct1132144255534
9251555174386
1080825375580
11313068a9a64
12137b8308250
137811130b31
143caa62bb2c
152180ba9670
hex12d1915b5c

80825375580 has 192 divisors, whose sum is σ = 240603955200. Its totient is φ = 20242909440.

The previous prime is 80825375567. The next prime is 80825375591. The reversal of 80825375580 is 8557352808.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8664799 + ... + 8674121.

It is an arithmetic number, because the mean of its divisors is an integer number (1253145600).

Almost surely, 280825375580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80825375580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120301977600).

80825375580 is an abundant number, since it is smaller than the sum of its proper divisors (159778579620).

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

80825375580 is a wasteful number, since it uses less digits than its factorization.

80825375580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9504 (or 9502 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 80825375580 in words is "eighty billion, eight hundred twenty-five million, three hundred seventy-five thousand, five hundred eighty".