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80069507712 = 2732232831583
BaseRepresentation
bin100101010010010000…
…0111011101010000000
321122200011220102122200
41022210200323222000
52302440243221322
6100441115233200
75533124404665
oct1124440735200
9248604812580
1080069507712
1130a59171277
1213627148800
13772066053c
143c380ada6c
15213964d8ac
hex12a483ba80

80069507712 has 288 divisors, whose sum is σ = 243917593920. Its totient is φ = 25205892096.

The previous prime is 80069507711. The next prime is 80069507717. The reversal of 80069507712 is 21770596008.

80069507712 is a `hidden beast` number, since 80 + 0 + 69 + 507 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×800695077122 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80069507711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50580073 + ... + 50581655.

It is an arithmetic number, because the mean of its divisors is an integer number (846936090).

Almost surely, 280069507712 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 80069507712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121958796960).

80069507712 is an abundant number, since it is smaller than the sum of its proper divisors (163848086208).

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

80069507712 is a wasteful number, since it uses less digits than its factorization.

80069507712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 80069507712 in words is "eighty billion, sixty-nine million, five hundred seven thousand, seven hundred twelve".