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83025644 = 22132122819
BaseRepresentation
bin1001111001011…
…01111011101100
312210020010202212
410330231323230
5132223310034
612123305552
72025464162
oct474557354
9183203685
1083025644
1142958439
122397b2b8
131427c600
14b053232
1574502ce
hex4f2deec

83025644 has 18 divisors (see below), whose sum is σ = 157332420. Its totient is φ = 38319216.

The previous prime is 83025643. The next prime is 83025667. The reversal of 83025644 is 44652038.

It is a super-2 number, since 2×830256442 = 13786515123229472, 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 83025644.

It is not an unprimeable number, because it can be changed into a prime (83025643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60734 + ... + 62085.

It is an arithmetic number, because the mean of its divisors is an integer number (8740690).

Almost surely, 283025644 is an apocalyptic number.

It is an amenable number.

83025644 is a deficient number, since it is larger than the sum of its proper divisors (74306776).

83025644 is a wasteful number, since it uses less digits than its factorization.

83025644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122849 (or 122834 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 83025644 is about 9111.8408677939. The cubic root of 83025644 is about 436.2519865920.

The spelling of 83025644 in words is "eighty-three million, twenty-five thousand, six hundred forty-four".

Divisors: 1 2 4 13 26 52 169 338 676 122819 245638 491276 1596647 3193294 6386588 20756411 41512822 83025644