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85085200 = 2452375749
BaseRepresentation
bin1010001001001…
…00110000010000
312221002202221201
411010210300100
5133240211300
612235400544
72052132544
oct504446020
9187082851
1085085200
1144034852
12245b3154
1314820b95
14b42ba24
15770a66a
hex5124c10

85085200 has 60 divisors (see below), whose sum is σ = 209978500. Its totient is φ = 33108480.

The previous prime is 85085197. The next prime is 85085201. The reversal of 85085200 is 258058.

It can be written as a sum of positive squares in 6 ways, for example, as 4875264 + 80209936 = 2208^2 + 8956^2 .

It is not an unprimeable number, because it can be changed into a prime (85085201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11926 + ... + 17674.

Almost surely, 285085200 is an apocalyptic number.

85085200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85085200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104989250).

85085200 is an abundant number, since it is smaller than the sum of its proper divisors (124893300).

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

85085200 is a wasteful number, since it uses less digits than its factorization.

85085200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 85085200 is about 9224.1639187517. The cubic root of 85085200 is about 439.8298239978.

The spelling of 85085200 in words is "eighty-five million, eighty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 37 40 50 74 80 100 148 185 200 296 370 400 592 740 925 1480 1850 2960 3700 5749 7400 11498 14800 22996 28745 45992 57490 91984 114980 143725 212713 229960 287450 425426 459920 574900 850852 1063565 1149800 1701704 2127130 2299600 3403408 4254260 5317825 8508520 10635650 17017040 21271300 42542600 85085200