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80438713742016 = 26327172273516293
BaseRepresentation
bin10010010010100010011000…
…111101010111001011000000
3101112210212101021011020212200
4102102202120331113023000
541020401441204221031
6443025011314353200
722641335212315020
oct2222423075271300
9345725337136780
1080438713742016
11236a2959968953
12903168a58b800
1335b6451c199c6
1415c137c57da80
159475dee408e6
hex492898f572c0

80438713742016 has 336 divisors, whose sum is σ = 279123950873664. Its totient is φ = 21621020295168.

The previous prime is 80438713741993. The next prime is 80438713742027. The reversal of 80438713742016 is 61024731783408.

80438713742016 is a `hidden beast` number, since 8 + 0 + 4 + 3 + 87 + 137 + 420 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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, 155542366 + ... + 156058658.

Almost surely, 280438713742016 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 80438713742016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139561975436832).

80438713742016 is an abundant number, since it is smaller than the sum of its proper divisors (198685237131648).

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

80438713742016 is a wasteful number, since it uses less digits than its factorization.

80438713742016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518608 (or 518595 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 80438713742016 in words is "eighty trillion, four hundred thirty-eight billion, seven hundred thirteen million, seven hundred forty-two thousand, sixteen".