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80822647296 = 293273972477
BaseRepresentation
bin100101101000101100…
…1111011101000000000
321201121200001212221100
41023101121323220000
52311011044203141
6101043541454400
75560601111136
oct1132131735000
9251550055840
1080822647296
1131305306186
12137b7411400
1378106b7071
143caa11b756
15218081b0b6
hex12d167ba00

80822647296 has 240 divisors, whose sum is σ = 238989094344. Its totient is φ = 26287276032.

The previous prime is 80822647259. The next prime is 80822647327. The reversal of 80822647296 is 69274622808.

80822647296 is a `hidden beast` number, since 8 + 0 + 82 + 2 + 6 + 472 + 96 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 69518704896 + 11303942400 = 263664^2 + 106320^2 .

It is a super-2 number, since 2×808226472962 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32628010 + ... + 32630486.

Almost surely, 280822647296 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 80822647296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119494547172).

80822647296 is an abundant number, since it is smaller than the sum of its proper divisors (158166447048).

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

80822647296 is a wasteful number, since it uses less digits than its factorization.

80822647296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 80822647296 in words is "eighty billion, eight hundred twenty-two million, six hundred forty-seven thousand, two hundred ninety-six".