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80147923128 = 23327131031131051
BaseRepresentation
bin100101010100100110…
…0000100000010111000
321122212122110100101100
41022221030010002320
52303120332020003
6100453000051400
75535066051240
oct1125114040270
9248778410340
1080147923128
1130a9945a9a9
1213649463b60
1377339875b0
143c44682b20
15214148cba3
hex12a93040b8

80147923128 has 384 divisors, whose sum is σ = 272399662080. Its totient is φ = 20727705600.

The previous prime is 80147923099. The next prime is 80147923133. The reversal of 80147923128 is 82132974108.

It is a happy number.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 76258203 + ... + 76259253.

It is an arithmetic number, because the mean of its divisors is an integer number (709374120).

Almost surely, 280147923128 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 80147923128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136199831040).

80147923128 is an abundant number, since it is smaller than the sum of its proper divisors (192251738952).

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

80147923128 is a wasteful number, since it uses less digits than its factorization.

80147923128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1292 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 80147923128 in words is "eighty billion, one hundred forty-seven million, nine hundred twenty-three thousand, one hundred twenty-eight".