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83016220 = 2257592973
BaseRepresentation
bin1001111001010…
…11101000011100
312210012122211211
410330223220130
5132223004340
612123154204
72025424540
oct474535034
9183178754
1083016220
1142951351
1223975964
1314278231
14b04da20
15744c5ea
hex4f2ba1c

83016220 has 24 divisors (see below), whose sum is σ = 199239264. Its totient is φ = 28462656.

The previous prime is 83016191. The next prime is 83016229. The reversal of 83016220 is 2261038.

It is a junction number, because it is equal to n+sod(n) for n = 83016191 and 83016200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83016229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296347 + ... + 296626.

It is an arithmetic number, because the mean of its divisors is an integer number (8301636).

Almost surely, 283016220 is an apocalyptic number.

It is an amenable number.

83016220 is an abundant number, since it is smaller than the sum of its proper divisors (116223044).

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

83016220 is a wasteful number, since it uses less digits than its factorization.

83016220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592989 (or 592987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 83016220 is about 9111.3237238065. The cubic root of 83016220 is about 436.2354800683.

Adding to 83016220 its reverse (2261038), we get a palindrome (85277258).

The spelling of 83016220 in words is "eighty-three million, sixteen thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 592973 1185946 2371892 2964865 4150811 5929730 8301622 11859460 16603244 20754055 41508110 83016220