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84082280 = 2352102057
BaseRepresentation
bin1010000001011…
…11111001101000
312212012211012112
411000233321220
5133011113110
612202101452
72040454562
oct500577150
9185184175
1084082280
114350a297
12241aa888
131455c539
14b24a332
1575ad405
hex502fe68

84082280 has 16 divisors (see below), whose sum is σ = 189185220. Its totient is φ = 33632896.

The previous prime is 84082259. The next prime is 84082291. The reversal of 84082280 is 8228048.

It can be written as a sum of positive squares in 2 ways, for example, as 83649316 + 432964 = 9146^2 + 658^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1050989 + ... + 1051068.

Almost surely, 284082280 is an apocalyptic number.

It is an amenable number.

84082280 is an abundant number, since it is smaller than the sum of its proper divisors (105102940).

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

84082280 is a wasteful number, since it uses less digits than its factorization.

84082280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102068 (or 2102064 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 84082280 is about 9169.6390332444. The cubic root of 84082280 is about 438.0948621010.

The spelling of 84082280 in words is "eighty-four million, eighty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 2102057 4204114 8408228 10510285 16816456 21020570 42041140 84082280