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83039712 = 25372127139
BaseRepresentation
bin1001111001100…
…01010111100000
312210020212001220
410330301113200
5132224232322
612123455040
72025553200
oct474612740
9183225056
1083039712
1142967a68
1223987480
1314285b32
14b058400
15745455c
hex4f315e0

83039712 has 144 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 23369472.

The previous prime is 83039707. The next prime is 83039743. The reversal of 83039712 is 21793038.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 597339 + ... + 597477.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 283039712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83039712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128701440).

83039712 is an abundant number, since it is smaller than the sum of its proper divisors (174363168).

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

83039712 is a wasteful number, since it uses less digits than its factorization.

83039712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 83039712 is about 9112.6127976558. The cubic root of 83039712 is about 436.2766249490.

The spelling of 83039712 in words is "eighty-three million, thirty-nine thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 96 98 112 127 139 147 168 196 224 254 278 294 336 381 392 417 508 556 588 672 762 784 834 889 973 1016 1112 1176 1524 1568 1668 1778 1946 2032 2224 2352 2667 2919 3048 3336 3556 3892 4064 4448 4704 5334 5838 6096 6223 6672 6811 7112 7784 10668 11676 12192 12446 13344 13622 14224 15568 17653 18669 20433 21336 23352 24892 27244 28448 31136 35306 37338 40866 42672 46704 49784 52959 54488 70612 74676 81732 85344 93408 99568 105918 108976 123571 141224 149352 163464 199136 211836 217952 247142 282448 298704 326928 370713 423672 494284 564896 597408 653856 741426 847344 864997 988568 1482852 1694688 1729994 1977136 2594991 2965704 3459988 3954272 5189982 5931408 6919976 10379964 11862816 13839952 20759928 27679904 41519856 83039712