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80502844996728 = 233271124337014349
BaseRepresentation
bin10010010011011110000111…
…011110101011110001111000
3101120000222220200102112200200
4102103132013132223301320
541022424311304343403
6443114255122002200
722646065355064060
oct2223360736536170
9346028820375620
1080502844996728
1123718079328800
129041ba7aa6360
1335bc5025331bb
1415c45039923a0
159490e51e3ca3
hex4937877abc78

80502844996728 has 576 divisors, whose sum is σ = 274974447384000. Its totient is φ = 20826989568000.

The previous prime is 80502844996699. The next prime is 80502844996741. The reversal of 80502844996728 is 82769944820508.

80502844996728 is a `hidden beast` number, since 8 + 0 + 5 + 0 + 28 + 449 + 96 + 72 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18510654298 + ... + 18510658646.

It is an arithmetic number, because the mean of its divisors is an integer number (477386193375).

Almost surely, 280502844996728 is an apocalyptic number.

80502844996728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80502844996728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137487223692000).

80502844996728 is an abundant number, since it is smaller than the sum of its proper divisors (194471602387272).

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

80502844996728 is a wasteful number, since it uses less digits than its factorization.

80502844996728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 557383680, while the sum is 72.

The spelling of 80502844996728 in words is "eighty trillion, five hundred two billion, eight hundred forty-four million, nine hundred ninety-six thousand, seven hundred twenty-eight".