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82888280 = 2352072207
BaseRepresentation
bin1001111000011…
…00011001011000
312202222011100022
410330030121120
5132204411110
612120330012
72024352536
oct474143130
9182864308
1082888280
1142874212
1223913908
1314231c27
14b019156
157424755
hex4f0c658

82888280 has 16 divisors (see below), whose sum is σ = 186498720. Its totient is φ = 33155296.

The previous prime is 82888259. The next prime is 82888291. The reversal of 82888280 is 8288828.

It is a super-2 number, since 2×828882802 = 13740933922716800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1036064 + ... + 1036143.

It is an arithmetic number, because the mean of its divisors is an integer number (11656170).

Almost surely, 282888280 is an apocalyptic number.

It is an amenable number.

82888280 is an abundant number, since it is smaller than the sum of its proper divisors (103610440).

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

82888280 is a wasteful number, since it uses less digits than its factorization.

82888280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072218 (or 2072214 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 44.

The square root of 82888280 is about 9104.3000829278. The cubic root of 82888280 is about 436.0112641929.

The spelling of 82888280 in words is "eighty-two million, eight hundred eighty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2072207 4144414 8288828 10361035 16577656 20722070 41444140 82888280