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80071468128 = 2532278025931
BaseRepresentation
bin100101010010010100…
…0011010010001100000
321122200022121000211200
41022210220122101200
52302441243440003
6100441225241200
75533150151331
oct1124450322140
9248608530750
1080071468128
1130a5a290153
1213627933200
137720b98952
143c38460288
1521398d96a3
hex12a4a1a460

80071468128 has 36 divisors (see below), whose sum is σ = 227703238308. Its totient is φ = 26690489280.

The previous prime is 80071468109. The next prime is 80071468129. The reversal of 80071468128 is 82186417008.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×800714681282 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80071468129) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 139012678 + ... + 139013253.

It is an arithmetic number, because the mean of its divisors is an integer number (6325089953).

Almost surely, 280071468128 is an apocalyptic number.

It is an amenable number.

80071468128 is an abundant number, since it is smaller than the sum of its proper divisors (147631770180).

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

80071468128 is a wasteful number, since it uses less digits than its factorization.

80071468128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278025947 (or 278025936 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 80071468128 in words is "eighty billion, seventy-one million, four hundred sixty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 278025931 556051862 834077793 1112103724 1668155586 2224207448 2502233379 3336311172 4448414896 5004466758 6672622344 8896829792 10008933516 13345244688 20017867032 26690489376 40035734064 80071468128