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80688910896 = 2432111912172203
BaseRepresentation
bin100101100100101101…
…1110001001000110000
321201021100102101002100
41023021123301020300
52310222330122041
6101022403220400
75554355266116
oct1131133611060
9251240371070
1080688910896
1131246872030
121377a677700
1377bba909b9
143c96467ab6
152173c006b6
hex12c96f1230

80688910896 has 240 divisors, whose sum is σ = 259642131840. Its totient is φ = 23134740480.

The previous prime is 80688910849. The next prime is 80688910909. The reversal of 80688910896 is 69801988608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36625731 + ... + 36627933.

It is an arithmetic number, because the mean of its divisors is an integer number (1081842216).

Almost surely, 280688910896 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 80688910896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129821065920).

80688910896 is an abundant number, since it is smaller than the sum of its proper divisors (178953220944).

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

80688910896 is a wasteful number, since it uses less digits than its factorization.

80688910896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 63.

The spelling of 80688910896 in words is "eighty billion, six hundred eighty-eight million, nine hundred ten thousand, eight hundred ninety-six".