91997985 is an odd 8-digits composite number following 91997984
and preceding 91997986 . In scientific notation, it is written as 9.1997985 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 49065584 positive integers (up to 91997985) that are relatively prime to 91997985.
91997985 has 4 divisors, whose sum is 98131200
The reverse of 91997985 is 58979919
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
ninety-one million nine hundred ninety-seven thousand nine hundred eighty-five
Scientific notation
9.1997985 × 10^7
Engineering notation
9.1997985 × 10^6
Prime Factorization
15 × 6133199
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91997985
Product of the distinct prime numbers
The prime factorization of 91997985 is 15 × 6133199.
Since it has a total of 2 prime factors.
6 , 10 , 39 , 22 , 457 , 939 , 4614 , 4423 , 30830 , 88664 , 618884 , 394916 , 777529 , 4286220 , 11841179 , 33062697 , 693315662 , 167843406 , 7039333559 , 9463582209
n×2
183995970
n×3
275993955
n×4
367991940
n×5
459989925
n÷2
45998992.5
n÷3
30665995
n÷3
22999496.25
n÷5
18399597
n2
8463629244060225
n3
7.7863683624061E+23
n4
7.1633019980911E+31
n5
6.5900934977086E+39
2 √n
9591.5580069142
3 √n
451.43244771528
4 √n
97.936499870652
5 √n
39.152154252121
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-91997984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 91997985 can be divided by 4 positive divisors.
The sum of these divisors (counting 91997985) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110111100011100100001
3
Ternary
20102002222111210
4
Quaternary
11132330130201
5
Quinary
142022413420
6
Senary
13043500333
8
Octal
536743441
10
Decimal
91997985
12
Duodecimal
269876a9
16
Hexadecimal
57bc721
20
Vigesimal
18ejej5
36
Base36
1iru3l
md5
97ccf29292b87fb972cc68b838804662
sha1
6469a6bf874500d6ba0e80c69ad4cd4e8fd67c64
sha256
db3576b8d44b543d3924141cef7da65a122b25d2f0c868abbecf458699aac29f
sha512
d34a60a59ce39588b017b5deabd7702ebfd5b324d2718c79feb37954f1bbd470fcff91449cecb7183bcf4c7ce7ccfb83e8008458277522140a22098f3854edc6
ripemd-160
5fc6706b5111126b05582c1609d45e05e26feade
Diameter
183995970
Circumference
578040387.64213
Area
2.6589275455847E+16
Volume
3.2615463527305E+24
Surface area
1.0635710182339E+17
Circumference
578040387.64213
Perimeter
367991940
Area
8463629244060225
Diagonal
130104798.098
Surface area
50781775464361350
Volume
7.7863683624061E+23
Space diagonal
159345184.21396
Perimeter
275993955
Area
3.6648589667845E+15
Altitude
79672592.10698
Surface area
3.6648589667845E+15
Volume
9.1763231164563E+22
Height
43368266.032666