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28936055890560 = 27357133112794177
BaseRepresentation
bin1101001010001001100110…
…10101010010001010000000
310210110021000111011000020110
412211010303111102022000
512243042020301444220
6141313012432311320
76044363303566140
oct645046325221200
9123407014130213
1028936055890560
119246792209325
1232b40026a2540
13131b873563480
14720726728920
15352a5e929be0
hex1a5133552280

28936055890560 has 1024 divisors, whose sum is σ = 117299950387200. Its totient is φ = 5902215413760.

The previous prime is 28936055890541. The next prime is 28936055890583. The reversal of 28936055890560 is 6509855063982.

It is a super-2 number, since 2×289360558905602 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28936055890491 and 28936055890500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6927471192 + ... + 6927475368.

It is an arithmetic number, because the mean of its divisors is an integer number (114550732800).

Almost surely, 228936055890560 is an apocalyptic number.

28936055890560 is a gapful number since it is divisible by the number (20) 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 28936055890560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58649975193600).

28936055890560 is an abundant number, since it is smaller than the sum of its proper divisors (88363894496640).

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

28936055890560 is a wasteful number, since it uses less digits than its factorization.

28936055890560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 66.

The spelling of 28936055890560 in words is "twenty-eight trillion, nine hundred thirty-six billion, fifty-five million, eight hundred ninety thousand, five hundred sixty".