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80549356608 = 263378380231
BaseRepresentation
bin100101100000100011…
…1011010010001000000
321200220121211021121000
41023001013122101000
52304431113402413
6101000500132000
75551042143240
oct1130107322100
9250817737530
1080549356608
1131185014906
121373b997000
137798bab4b6
143c81adbb20
152166836073
hex12c11da440

80549356608 has 224 divisors, whose sum is σ = 273892792320. Its totient is φ = 22736540160.

The previous prime is 80549356583. The next prime is 80549356619. The reversal of 80549356608 is 80665394508.

It is a happy number.

80549356608 is a `hidden beast` number, since 8 + 0 + 549 + 35 + 6 + 60 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 963853 + ... + 1044083.

It is an arithmetic number, because the mean of its divisors is an integer number (1222735680).

Almost surely, 280549356608 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 80549356608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136946396160).

80549356608 is an abundant number, since it is smaller than the sum of its proper divisors (193343435712).

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

80549356608 is a wasteful number, since it uses less digits than its factorization.

80549356608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80342 (or 80326 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 80549356608 in words is "eighty billion, five hundred forty-nine million, three hundred fifty-six thousand, six hundred eight".