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80755688448 = 210351922931
BaseRepresentation
bin100101100110101101…
…0100000010000000000
321201110000002000200000
41023031122200100000
52310341424012243
6101033150400000
75556126011631
oct1131532402000
9251400060600
1080755688448
1131280531a96
1213798b00000
1377cc871846
143ca128b888
1521799e15d3
hex12cd6a0400

80755688448 has 792 divisors, whose sum is σ = 272530702080. Its totient is φ = 23828152320.

The previous prime is 80755688443. The next prime is 80755688449. The reversal of 80755688448 is 84488655708.

80755688448 is a `hidden beast` number, since 80 + 7 + 55 + 68 + 8 + 448 = 666.

It is not an unprimeable number, because it can be changed into a prime (80755688441) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2605022193 + ... + 2605022223.

Almost surely, 280755688448 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 80755688448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136265351040).

80755688448 is an abundant number, since it is smaller than the sum of its proper divisors (191775013632).

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

80755688448 is a wasteful number, since it uses less digits than its factorization.

80755688448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 63.

The spelling of 80755688448 in words is "eighty billion, seven hundred fifty-five million, six hundred eighty-eight thousand, four hundred forty-eight".