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85510850 = 25217293469
BaseRepresentation
bin1010001100011…
…00101011000010
312221220101211112
411012030223002
5133342321400
612252443322
72055554525
oct506145302
9187811745
1085510850
11442a5627
1224779542
131493c849
14b4dcbbc
157791835
hex518cac2

85510850 has 48 divisors (see below), whose sum is σ = 174263400. Its totient is φ = 31073280.

The previous prime is 85510819. The next prime is 85510853. The reversal of 85510850 is 5801558.

It can be written as a sum of positive squares in 12 ways, for example, as 889249 + 84621601 = 943^2 + 9199^2 .

It is not an unprimeable number, because it can be changed into a prime (85510853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22916 + ... + 26384.

Almost surely, 285510850 is an apocalyptic number.

85510850 is an abundant number, since it is smaller than the sum of its proper divisors (88752550).

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

85510850 is a wasteful number, since it uses less digits than its factorization.

85510850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527 (or 3522 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 85510850 is about 9247.2076866479. The cubic root of 85510850 is about 440.5620400292.

The spelling of 85510850 in words is "eighty-five million, five hundred ten thousand, eight hundred fifty".

Divisors: 1 2 5 10 17 25 29 34 50 58 85 145 170 290 425 493 725 850 986 1450 2465 3469 4930 6938 12325 17345 24650 34690 58973 86725 100601 117946 173450 201202 294865 503005 589730 1006010 1474325 1710217 2515025 2948650 3420434 5030050 8551085 17102170 42755425 85510850