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83080280 = 2352077007
BaseRepresentation
bin1001111001110…
…11010001011000
312210022220201102
410330323101120
5132232032110
612124410532
72026112363
oct474732130
9183286642
1083080280
1142995498
12239a6a48
131429b43a
14b0690da
1574615a5
hex4f3b458

83080280 has 16 divisors (see below), whose sum is σ = 186930720. Its totient is φ = 33232096.

The previous prime is 83080253. The next prime is 83080289. The reversal of 83080280 is 8208038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83080289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038464 + ... + 1038543.

It is an arithmetic number, because the mean of its divisors is an integer number (11683170).

Almost surely, 283080280 is an apocalyptic number.

It is an amenable number.

83080280 is an abundant number, since it is smaller than the sum of its proper divisors (103850440).

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

83080280 is a wasteful number, since it uses less digits than its factorization.

83080280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077018 (or 2077014 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 83080280 is about 9114.8384516677. The cubic root of 83080280 is about 436.3476591898.

The spelling of 83080280 in words is "eighty-three million, eighty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2077007 4154014 8308028 10385035 16616056 20770070 41540140 83080280