85191891 is an odd 8-digits composite number following 85191890
and preceding 85191892 . In scientific notation, it is written as 8.5191891 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 55246400 positive integers (up to 85191891) that are relatively prime to 85191891.
85191891 has 16 divisors, whose sum is 116702208
The reverse of 85191891 is 19819158
Previous prime number is 1607
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-five million one hundred ninety-one thousand eight hundred ninety-one
Scientific notation
8.5191891 × 10^7
Engineering notation
8.5191891 × 10^6
Prime Factorization
3 × 41 × 1607 × 431
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
85191891
Product of the distinct prime numbers
The prime factorization of 85191891 is 3 × 41 × 1607 × 431.
Since it has a total of 4 prime factors.
8 , 1 , 63 , 11 , 720 , 58 , 9809 , 5833 , 64954 , 44518 , 461893 , 539681 , 7841935 , 8855848 , 99170979 , 77096412 , 375802943 , 621637511 , 6929565906 , 2011084186
n×2
170383782
n×3
255575673
n×4
340767564
n×5
425959455
n÷2
42595945.5
n÷3
28397297
n÷3
21297972.75
n÷5
17038378.2
n2
7257658292155881
n3
6.1829363414059E+23
n4
5.2673603885699E+31
n5
4.4873639208076E+39
2 √n
9229.9453411166
3 √n
440.013586013
4 √n
96.072604529682
5 √n
38.554906271282
1 , 3 , 41 , 123 , 431 , 1293 , 1607 , 4821 , 17671 , 53013 , 65887 , 197661 , 692617 , 2077851 , 28397297 , 85191891
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85191890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85191891 can be divided by 16 positive divisors.
The sum of these divisors (counting 85191891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000100111110110011010011
3
Ternary
12221022012022020
4
Quaternary
11010332303103
5
Quinary
133302120031
6
Senary
12241542523
8
Octal
504766323
10
Decimal
85191891
12
Duodecimal
24644a43
16
Hexadecimal
513ecd3
20
Vigesimal
16c8jeb
36
Base36
1epyhf
md5
07b9c041c247ee814027aa902777d45c
sha1
44ba8c6410a2cb98bd633b580f66cf32d71043b2
sha256
fe1184eedf8311dc7d8cd97b4965073f2935bf0614bddce48b727a2cc444ce73
sha512
c619666a2dc153bcf6439cf0bfcf4fe0198dfc07a4e4721532f4bd2639bfb8895d047f48c38707c0b5540e2ce618afa4d4d262e142aff328ca21033af7f80f95
ripemd-160
df52740031cbfc575acb3c2080d657429688b0e8
Diameter
170383782
Circumference
535276437.82204
Area
2.2800605972902E+16
Volume
2.5899023183699E+24
Surface area
9.1202423891608E+16
Circumference
535276437.82204
Perimeter
340767564
Area
7257658292155881
Diagonal
120479527.65641
Surface area
43545949752935286
Volume
6.1829363414059E+23
Space diagonal
147556683.60487
Perimeter
255575673
Area
3.1426582264969E+15
Altitude
73778341.802435
Surface area
3.1426582264969E+15
Volume
7.2866603577548E+22
Height
40159842.552137