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80068724736 = 21137111347277
BaseRepresentation
bin100101010010001110…
…1111100100000000000
321122200010102122121120
41022210131330200000
52302440043142421
6100441050352240
75533114634160
oct1124435744000
9248603378546
1080068724736
1130a58786a90
1213626a2b680
137720448040
143c37d485a0
1521395468c6
hex12a477c800

80068724736 has 768 divisors, whose sum is σ = 293764423680. Its totient is φ = 18721013760.

The previous prime is 80068724693. The next prime is 80068724767. The reversal of 80068724736 is 63742786008.

It is a tau number, because it is divible by the number of its divisors (768).

It is a super-2 number, since 2×800687247362 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 289056630 + ... + 289056906.

It is an arithmetic number, because the mean of its divisors is an integer number (382505760).

Almost surely, 280068724736 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 80068724736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146882211840).

80068724736 is an abundant number, since it is smaller than the sum of its proper divisors (213695698944).

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

80068724736 is a wasteful number, since it uses less digits than its factorization.

80068724736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 80068724736 in words is "eighty billion, sixty-eight million, seven hundred twenty-four thousand, seven hundred thirty-six".