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83680190 = 2511760729
BaseRepresentation
bin1001111110011…
…01101110111110
312211110101122022
410333031232332
5132410231230
612145320142
72034161366
oct477155676
9184411568
1083680190
1143265190
1224036052
131444b509
14b1839a6
15752e1e5
hex4fcdbbe

83680190 has 16 divisors (see below), whose sum is σ = 164317680. Its totient is φ = 30429120.

The previous prime is 83680189. The next prime is 83680211. The reversal of 83680190 is 9108638.

It is a super-2 number, since 2×836801902 = 14004748396872200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83680190.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380255 + ... + 380474.

It is an arithmetic number, because the mean of its divisors is an integer number (10269855).

Almost surely, 283680190 is an apocalyptic number.

83680190 is a deficient number, since it is larger than the sum of its proper divisors (80637490).

83680190 is a wasteful number, since it uses less digits than its factorization.

83680190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760747.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 83680190 is about 9147.6876859674. The cubic root of 83680190 is about 437.3954079226.

The spelling of 83680190 in words is "eighty-three million, six hundred eighty thousand, one hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 760729 1521458 3803645 7607290 8368019 16736038 41840095 83680190